Choose the best answer: 

They are ugly and expensive, _______ people buy them.

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Please pardon me for _______ you.

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I did it_____ they asked me to.

Many companies have computers at work. In addition, most universities  __________ day and night courses in Computer Science. A. have       B. has        C. had        D. having

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He is very clever and wins all the prizes _______ his brother never seems to know a thing.

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We wish that you_______ such a lot of work, because we know that you would have enjoyed the party.

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Do you know what_______ so many people evacuate their homes?

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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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After_____ dinner, I watch television.

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This is the woman_______ the artist said posed as a model for the painting.

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

My mother told me she _______ very tired since she came back from a visit to our grandparents.

Dr. Meier has ______ his interview, so he has left the TV

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Last yeas I earned _____my sister, who has a better position.

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John Kennedy was _________ of the United States.

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)_____. 

(25)......

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My husband lived at home before we were married, and so______

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He is very fond of music_______ reading.

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He says he will pay; I don’t think he will, _______

Are there any robots in the space __________?

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Mary and John ________ to the parties at the Student Union every Friday.

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Sending_______- “Special delivery” costs about fifteen times as much as sending it “regular delivery”.