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Not only Jim but also I ________ (be) to Beijing twice.

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She is too old ________ (carry) the box.

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He stopped ________ (write) and had a short rest.

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Simon's mother said she ________ (buy) a coat for her son the next day.

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I don't know if he ________ (come) tomorrow, But if he ________ (come), I'll tell you.

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It's not as cold as it ________ (be) yesterday.

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Is this your pen? I ________ (find) it under the desk.

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I've just read a book about bamboo. It ________ (use) for many kinds of things now.

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The children are ________ (play) ping-pong in the corner of the playground.

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I know Tom and Kate ________ (come) to help me.