Choose the best answer: 

Although he tried hard, _____

____ a pet when you were young?

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He was rather elderly. He was_______

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Statistics_____ a difficult course for people to understand.

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Sit down please _____ a cup of tea?

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“Where were you yesterday?”

          “It was_____ hot day that I went to an air-conditioned movie”.

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There was no one there; _______ I went away.

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You’re having a sore throat. You’d better_____ to the doctor.

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Since_____ his new business, Bob has been working 16 hours a day.

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 “I’m building a table”.

          “How far have you gotten_____ it?”.

a. to

b. for                        

c. along                       

d. on

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Before Jennifer won the lottery, she_____ any kind of contest.

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__________ is the world’s most abundant fossil fuel.

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May I have two ________ instead of beans, please?

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hey prayed that their daughter_____ be lucky again.

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 You _____ throw litter on the streets.

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The child hurt himself badly when he fell _______ the bedroom window.

Choose the word (a, b, c, or d) that best fits each of the blank spaces. 
Computers are very (21)____, but they also can (22) _____ problems. One kind of problem is with the computer’s memory. It is not perfect, so (23) ____ computers lose (24)______information. Another problem is with the machinery. Computers are machines, and (25)_____can break down. When computers break down, they may erase information, like chalk on a blackboard. Or they may stop doing anything at all. And there is another different kind of problem with computers. Some doctors say they may be bad for your (26)_____. 
(26)......

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They listened______ while the examiner gave them the directions for Part I.

Choose correct answer A, B, C or D to complete the sentence. I use a laptop __________ to music and watch videos

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_____their work, they went home.

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

After he had spoken, a _______ silence fell on the room.