Choose the best answer: 

Beriberi had long been a________ disease.

Recently, it is important__________ about computers. There are a number of things to learn. 

Choose the best answer: 

Would you mind_______ me a hand?

Now we __________  human to do such work as mining minerals.

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The _________ of women earning Master’s Degrees has risen sharply in recent years.

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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My daughter often_______ to see me at least once a week.

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“What is your opinion of the Smiths?”.

          “They are_____ people”.

Robots will be able to do the __________ for us soon.

Choose the word (a, b, c, or d) that best fits each of the blank spaces. 
Not so long ago, people only used the (23)_____to make phone calls. Now, thanks to computers, people use their phones to do much more. They can bank by . phone, rent videos by phone, and even shop by phone. It is also possible (24)_____letters and reports by faxing them over telephone lines. People can even use their phone lines to (25)________ messages from one computer to another computer by (26)_________ mail, or e-mail. 

(25).....

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Everyone has put_______ equipment back into its proper place. 

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You ________ your seats today if you want to go to the game.

Choose the word or phrase that best completes each unfinished sentence below or substitutes for the underlined word or phrase.

I have no idea where she is.

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This animal extracts _________ from food to sustain itself.

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I can’_______ what he’s doing, it’s so dark down there.

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_____their work, they went home.

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Would you please____________ write on the test books?

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It was very wet_______ I decided not to go.

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“Did you hear the phone ring last night?”.

          “I didn’t hear anything, I was_____ that I didn’t wake up”.

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You can send letters from Hongkong_______ by Suez or by Canada.

Choose the best answer: 

____ one hand on the steering wheel, Ann opened a can of soda pop with her free hand.