The telegraph was (1) ______ in 1835 by Samuel Morse. The telegraph is an instrument (2) ______ sending messages between distance distant places by an electric current. To operate a (3) ______, you put a special key and then release it. This action closes and (4) ______ the electric circuit. The telegraph makes use of a special code, (5) ______ the Morse code. A message (6) ______ on a telegraph is called a telegraph (7) ______ the 1800s, the telegraph was extremely important until it was (8) ______ by the radio and the telephone.

1. A. invented B. improved C. invited D. discovered

2. A. from B. for C. on D. to

3. A. television B. telegram C. telegraph D. telephone

4. A. opened B. to open C. opening D. opens

5. A. call B. was called C. is called D. called

6. A. send B. received C. sent D. receives

7. A. On B. In C. From D. To

8. A. replaced B. retired C. repeated D. reread

1...... water is one of the factors that have driven many species to the verge of extinction

A.contamination B.contaminate C.contamination D.contaminated

2 . it's recommended that we become more concerned. ... the environment around us

A.of B.to C. With D.about

3.the.... use of pesticides and herbicides has led to contamination of groundwater in some areas

A.windesspread B. Occasional C. General D.experimental

5.Many people in this city have received medical. ... for the disease

A.support B.treatment C.help D.assistance

I. Choose the best answer A,B,C or D to complete the sentences

1. Nam is always his homewrok.

A. forget B. forgets C. foretting D. forgot

2. The woman a new shirt is Mrs Lan.

A. made B. making C. is made D is making

3. I don't know how to Bac Giang supermaket.

A. to get B. getting C. get D. got

4. We have learnt Enghish 2000

A. since B. for C. in D. from

5. It's difficult all these things

A. remember B. remembered C. remembering D. to remember

1) if people (travel)...........to work by bus, there (be)....................fewer car fumes A.to travel/be B.travel/are C. will travel/be D.travel/will be 2) if people didn't throw rubbish in the street, it (look)........attractive A. will look B.would look C. look D. to look 3) there are about 750 million English speakers in the world, and this number (increase)......fast A.is increasing B. to increase C.are increasing D.increase 4) in the future, natural disasters (predict).........accurately with the help of technology A. to predict B.predict C. will be predicted D.will predict 5) on my birthday, I was very pleased because I (receive)............a nice present A.receive B. had received C.without D.at

Choose the letter A, B, C or D to complete the sentences

Artificial intelligence (AI) is an area of __________ concerned with making computers copy intelligent human behaviour.

A. field

B. study

C. reality

D. technique

Choose the letter A, B, C or D to complete the sentences

Artificial intelligence (AI) is an area of __________ concerned with making computers copy intelligent human behaviour.

A. field

B. study

C. reality

D. technique

Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

I am happy that you remembered my birthday.

A. forgot

B. missed

C. reminded

D. thought

Have a walk(1)............................ a beach, listen to the sound of the sea waves, and suddenly you see a lot of rubbish on the beach. Pollution takes away all the (2)....................of our beaches. I feel really annoyed(3)................... I see plastic bags lying on the sand, cigarette ends buried in the sand, and soda cans floating in the sea.

There are a lot of things that we can do. (4) ...................... we see rubbish, we should do our part in the protecting the land(5)............. picking it up and throwing it in dust bins (6)................., we can form some kind of organization that helps (7)................ the beaches. If everyone does their part, the beaches will be a wonderful and beautiful place. We need to start now (8)................ the beaches are damaged beyond repair.

1. A. on B. in C. at D. over

2. A. beauty B. beautifully C. beautiful D. being beautiful

3. A. before B. after C. when D. while

4. A. While B. Soon C. Unless D. If

5. A. by B. with C. of D. in

6. A. Nevertheless B. Moreover C. However D. Therefore

7. A. cleaning up B. cleaning up C. clean up D. clean off

8. A. when B. after C. until D. before

MẤY BẠN GIÚP MÌNH VỚI. CHIỀU NAY MÌNH ĐI HỌC RỒI

1. Mr.Kennedy has been a professional football..................2001.

A. for B.since C.in D.from

2. We don't have...........you do.

A. as many as money B.more money C. as much money as D. much money

3. "............is it since you last called Jenny ?". Mry asked

A. How far B. How many C. How long D. How much

4. The new shopping mall is.....th present shopping area.

A. as same as B. the same C. different from D. like

5. All residents and store ownner have been concerned.....the new mall for a few months.

A. on B. in C. at D.about

6. We.................a community meeting to discuss the river pollution recently.

A. have organized B. organized C. will organize D. organize

7. Playing soccer has been my hobby since I .....a child.

A.was B.were C. am D.used to

8. My family .........a summer vacation in Sam Son this weekend

A. will have B. is having C. had D. has

Nhớ giải thích c.tiết giúp mik nha !