I

1 went - had finished

2 had already seen

3 had already begun

4 hadn't eaten

5 asked - had come

6 sat - rested

7 watched - had done

8 went

9 did - do - was

10 have ever seen

II

1 had gone - went

2 told - had visited

3 had already started

4 went - had called

5 rang - was having

6 agreed 

7 were - doing

8 had happened

9 had taught - left

10 won

1. doesn't have

2. comes

3. is staying

4. don't drive

5. go

6. are (you) talking

7. does ... live

8. lives

9. Are

10. am

11. is playing

12. am not talking

13+14. does (she) go

15. goes

1. am writing

2. have/ go

3. have

4. has

5. am eating/ is playing

6. is looking/ is eating

7. are

8. Does...walk

9. is/ are learning

10. are they doing

1. I (write)___________am writing__________ a letter to my friend now.
2. At 12 a.m every day, I (have)______have____ lunch and then (go)_____go______ to bed.
3. On Monday, I (have)______have______ Math and Art.
4. On Friday, she (have)_____has_______ English.
5. At the moment, I (eat)____am eating____an orange and my sisters (play) ___are playing____tennis.
6. Now, he (look)____is looking___ at his cat . It (eat)__is eating____ a mouse in the garden.
7. Phong, An , Ha, Lan (be)_________are_________ close friends.
8.____Does_______your mother (walk)____walk_____to the market at the weekend?
9. It (be)__is_____10.00.We (learn)_______are ________our lesson.
10. What____are____they (do)______doing______now? 21:39

1. I (run).had run.., so i was hot and tired.

2. I felt ill because i (drink).had drunk..six cups of coffee.

3. I didn't go to the class because I (not/do).hadn't been doing..my homework.

Câu 1 là con tàu

Câu 2 là thăng long và hạ long

1,con tàu

2,thăng long , hạ long

1 is riding

2 am playing - is watching

3 are sitting

4 am eating

5 is doing

6 is brushing

7 is talking

8 is sleeping

9 is doing

10 is watching

11 are going

12 are playing

13 is sitting

14 are eating

15 is having

Chia động từ ở thì HTTD với thể khẳng định.

S+Am/is/are+V-ing+......

1.Miss.Nhung(ride)...are riding......her bike to work 

2.I(play).....am playing....video games and my sister(watch).......is watching.......TV.

3.We(sit)....are sitting...in the living room.

4.I(eat)....am eating.....my breakfast at a food store.

5.My sister(do)...is doing.... her homework.

6.She (brush).....is brushing......... her teeth now.

7.Mark(talk)...........is talking......to a friend at the momemt.

8.The cat (sleep)......is sleeping..........under the table at the momemt.

9.Lan (do)...is doing.......her homework.

10.My sister (watch).....is watching........television.

11.They(go)...are going.........to school now.

12.Dung and I(play).....are playing....soccer.

13.This boy (sit)..........is sitting........on the bench.

14.We (eat) are eating a big breakfast at the momemt.

15.He (have)......is having...dinner with her.

1. 1/4

2.quy đồng lên mẫu chung là 20: 4/5+3/4-3/10=(16+15-6)/20=25/20=5/4

3. số xăng lần sau lấy ra:32850x1/3=10950

    số xăng lúc đầu:10950+56200=67150

4. bớt số chia11 đơn vị

bớt số bị chia4 đơn vị

5. ta có:(53-y)x5=3x75

=> 265-5y=225

=>265-225=5y

=>5y=40

=>y=8

vậy số cần tìm là 8