After the plane ________, we almost saw nothing, because there was too much cloud.

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Mum, don't worry ________ the trip. We're ready.

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Mr. Smith said to David,“Please ________ what I will say.”

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I'm going to the water park ________ a holiday. Could you please ________ the cat for me.

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You'll fail in the exam ________ you study hard.

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He went on ________ for ________ two hours.

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Li Lida is ________ schoolboy.

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Have your parents ever ________ Shanghai?

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My father has ________ eaten supper, but my mother hasn't________.

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He was always the last ________ the factory.

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