1 I want to know if acupuncture is a risky medical procedure.

2 I want to know whether the needles are made of stainless steel or some other metal.

3 I want to know if the needles hurt when they are inserted.

4 I want to know whether the effectiveness of acupuncture in relieving back pain has ever been documented.

5 I want to know if acupuncture can strengthen the immune system.

6 I want to know if acupuncture uses the body's energy to promote healing.

7 I want to know whether you studied acupuncture in China or in the United States.

8 I want to know if you have ever used acupuncture during an operation.

#\(yGLinh\)

Rewrite these sentences using an if construction

1. I did't see the signal so Idid't stop

=> If I had seen the signal, I would have stopped.

2.she did't know you were in hospital so she didn't visit you

=> If she had known you were in hospital, she would have visited you.

3. I did't know your number so I didn't ring

=> If I had known your number, I would have rung.

4.We only came by bus because there were no taxis

=> If there had been some taxis, we wouldn't have come by bus.

5.She didn't speak to him possible because she was so shy

=> If she hadn't been so shy, she would have spoken to him.

6. Landlord: She threatened to set fire to her flat ; that's the only reason I askeed her to leave

=> If she hadn't threatened him, he wouldn't have asked her to leave.

7' we đin't visit the musrum because we hadn't time

=> If we had time, we would have visited the museum.

8.I only came up the stairs because the lift wasn't working

=> If the lift had been working, I wouldn't come up the stairs.

9.We didn't listen carefully; perhaps that's why we made this mistake

=> If we had listened carefully, we wouldn't have made this mistake.

10'We got a lift so we reached the station in time

=> If we hadn't got a lift, we wouldn't have reached the station in time.

11 You washed it in boiling water that's why it shrank

=> If you hadn't washed it in boiling water, it wouldn't have shrunk.

12. We missted the train because we were using an out -of- date timetable

=> If we hadn't used an out of date timetable, we wouldn't have missed the train.

13His own men deserted him; that's the only reason why he failed

=> If his own men hadn't deserted him, he wouldn't have failed.

14 They were driving very quickly .That's why the accident was so terrible ư

=> If they hadn't driven very quickly, the accident wouldn't have been so terrible.

15 it was raining .That the only reason I didn't take the children to the beach

=> If it hadn't rained, I would have taken the children to the beach.

16 When I bought this house I didn't realize that in summer planes skimmed the roof very five minutes

=> If I had realized that in summer planes skimmed the roof every five minutes, I wouldn't have bought it.

17 Tom's father was on the Board'That 's the only reason he got the job

=> If Tom's father hadn't been on the board, he wouldn't have got the job.

18 He wasn't looking where he was going ,That's why he was run over

=> If he hadn't looked where he was going, he wouldn't have run over.

19 I don't like country life perhaps because I wasn't brought up in the country

=> If I had been brought up in the country, I would have liked it.

20 I didn't know he was so quarrelsome '.I'm sorry now that I invited him

=> If I had known he was so quarrelsome, I wouldn't have invited him.

Rewrite these sentences using an if construction

1. I did't see the signal so Idid't stop

=> If I had seen the singnal , I would have stopped

2.she did't know you were in hospital so she didn't visit you

=> If she had known you were in hospital, she would have visited you

3. I did't know your number so I didn't ring

=> if I had known your number , I would have rung

4.We only came by bus because there were no taxis

=> If there had been some taxis, We wouldn't have came by bus

5.She didn't speak to him possible because she was so shy

=> if she hadn't been so shy, she would have speaken to him pissible

6. Landlord: She threatened to set fire to her flat ; that's the only reason I askeed her to leave

7' we đin't visit the musrum because we hadn't time

=> If we had had time, we would have visited the musrum

8.I only came up the stairs because the lift wasn't working

=>If the lift had been working, I would have come up the stairs

9.We didn't listen carefully; perhaps that's why we made this mistake

10'We got a lift so we reached the station in time

=> If we had got a lift , we would have reached the station in time

11 You washed it in boiling water that's why it shrank

12. We missted the train because we were using an out -of- date timetable

13His own men deserted him; that's the only reason why he failed

14 They were driving very quickly .That's why the accident was so terrible ư

15 it was raining .That the only reason I didn't take the children to the beach

=> If it hadn't been raining I would have taken the childran to the beach

16 When I bought this house I didn't realize that in summer planes skimmed the roof very five minutes

=> If I had readlized that in summer planes skimmed the roof very five minutes, I would have bouht this house

17 Tom's father was on the Board'That 's the only reason he got the job

=>If tom's father had been on the board, he would have got the job

18 He wasn't looking where he was going ,That's why he was run over

=> If he hadn't run over, he would have been looing where he was going

19 I don't like country life perhaps because I wasn't brought up in the country

=>If I had brought up in the country, I would have liked coutry lifre perhaps

20 I didn't know he was so quarrelsome '.I'm sorry now that I invited him

=> If I had known ha was so quarrelsome, I would have visited him

1. Will be locked if you press

2. I would have woken up

3. Wouldn't have bitten him

1. BY PRESSING THE BUTTON YOU LOCK ALL THE DOORS ( press)

➜ALL THE DOORS..will be locked if you press...........................THE BUTTON

2. i didn't wake up on time because i didn't hear the alarm clock.(WOKEN)

➜ if i'd heard the alarm clock ..I would have woken up........................on time

3. the reason the dog bit him was that he was in our garden. (bittten)

the dog ..wouldn't have bitten him.......... if he hadn't been in our garden.

Phần đáp án cần điền là dòng chữ được in đậm-nghiêng.

1) The schoolchildren sowed some seeds, but they forgot to water them so they didn't grow.->If the children......hadn't forgot to water some seeds, they would have grown.................

2) They don't understand the problem. They won't find a solution.->Should.......they understand the problem, they will find a solution..............

3.He sits around too much. He isn't fit.->Were....he to sit around to much, he would be fit.............

4.Rita is exhausted today because she didn't get any sleep last night.->Had......rita got sleep last night, she would be exhausted today...............

5.She's very thin; perhaps that's why she feels cold so much.-> If she......wasn't thin, she wouldn't cold so much.......................

6.He never polishes his shoes, so he never looks smart.-> If he.......polished his shoes, he would look smart................

7.He can't park near his office; that's why he doesn't come by car.-> If he........could park near his office, he would come by car..............

8. My house is guarded by two big dogs. That's the only reason it isn't broken into every night.->If my house..........weren't guarded by 2 big dogs, it would be broken into everynight........

9.The flats are not clearly numbered, so it is very difficult to find anyone.-> If the flats.....were clearly numbered, it wouldn't be very difficult to find............................

10.I don't know her e-mail address, so I can't tell you.->Were.....i to knew her email address, i could tell you.................

1. If I hadn't been busy, I would have watched T.V last night.

2. If she hadn't helped, the house would have caught fire.

3. giống vs câu 1 nha!

4. If the policeman hadn't showed me the way, I wouldn't have found the house.

5. If we hadn't stayed up all night, we wouldn't be so tired this morning.(câu điều kiện hỗn hợp loại 3-2 nha)

Bài 1:FACT IN THE PAST-> IF CLAUSE TYPE 3.

1.i didn't watch T.V last night because i was busy.

->If.........i hadn't been busy, i would have watched tv last night

2.Without her help, the house would have caught fire.

->If.........she hadn't helped, the house wouldn't have caught fire. ...

3.i didn't watch tv last night because i was busy.

->If............(trùng với câu 1)

4.The policeman showed me the way, so i found the house.

->if.............The policeman hadn't shown me the way, i wouldn't have found the house

5.we stayed up all night, that's why we're so tired this morning.

->If..............we hadn't stayed up all night, we wouldn't have been tired this morning.

1: we didn't visit the museum because we didn't have time.

---> If we had had time, we would have visited the museum.

2: she got tired because she worked so hard.

---> If she hadn't worked so hard, she wouldn't have gotten tired.

3: he didn't pass the exam because he didn't work hard

---> If he had worked hard, he would have passed the exam.

4: they didn't attend the lectuer, so they were punished

----> If they had attended the lecture, they wouldn't have been punished.

5: I didn't have an unbrella with me so I got wet.

----> I wouldn't have gotten wet if I had had an umbrella.

6: you drink too much coffee , that's why you can't sleep

-----> If you didn't drink too much coffee, you could sleep.

7:dick is in prison because a detective recognized him.

----> If a detective hadn't recognized Dick, he wouldn't be in prison.

8: I don't have any money , so I can't lend you any .

---> If I had some money, I could lend you some.

9: I didn't have the money , so I didn't buy a new suit.

----> If I had had the money, I would have bought a new suit.

10: she doesn't live in london because she doesn't know anyone there.

----> If she knew someone in London, she would live there.

11: I can't live in the country because I don't find a job there .

---->If I found a job in the country, I could live here