If only I ________ how to operate a computer as you do!

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Why didn't you tell me earlier?

I tried to call you, but the line was busy; I can't ________ to you.

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He looked tired. He seemed ________ a sleepless night.

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With everything she needed ________, the lady took a taxi home.

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With a lot of difficult problems ________, the newly elected president is having a hard time.

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I can't say ________ I miss all of you.

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She bought the house for five thousand yuan three years ago, but now it is worth ________ the amount.

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He made a fire ________ himself up.

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________ the temperature falling rapidly, we couldn't go on with the experiment.

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Don't turn to the dictionary every time you ________ a word or phrase you don't know.

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