Jack ran for a doctor, ________ we stayed with the patient.

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I wonder if your wife will go to the ball. If she ________ so ________ I.

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 --What do you think made Mary so upset?

--________ her new car.

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-- Let me help you, Tom!

--Thank you. I can do it. Here’s ________ to hold all these things.

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--Was it in 1969 ________ the American astronaut succeeded ________ landing on the moon?

-- Yes, that’s right.

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I _______ impossible for _______ to work out the maths problem.

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Plastic is used _______wood today in many ways.

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After his journey from abroad，Richard Jones returned home, ________.

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It was foolish of him to _______ his notes during that important test, and as a result, he got punished.

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I was really anxious about you. You _______ home without a word.

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