Be careful when you cross the street .1f not, you may ________ run over by a car.

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The doctors are trying to reduce the patient's fear ________ he would die of the disease.

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There is no night-flight to the small town. The service was ________ at the end of the summer.

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I must think of a proper gift for my mother, ________ won't be expensive but will make her happy.

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—Excuse me, may I ask some questions?

—Sorry, I'm too busy and haven't even a minute to ________.

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I just don't understand ________ that prevents so many Americans from being as happy as one might expect.

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—I don't think we have met before.

—Yes, once at a patty, but we ________.

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When I said some students are lazy, I ________ to you.

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He is said ________ in the supermaket when he was doing some shopping the day before yesterday.

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I can give you an example of marry cases ________ students obviously knew a lot of English words and expressions but ________ write a good seeay.

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