The store had to ________ a number of clerks because sales were down.

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Great changes, ________, have taken place in our country these years.

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We finally managed to ________ the committee's approval of our plans.

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He didn't come back and his parents were ________ anxious to look for him.

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________ is now no ________ that global warming is a security threat to us all.

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The driver ________ the speed of the car in the frozen area.

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No one has yet ________ to our complains, so I will write a letter to the newspaper.

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(2005·湖北八校联考)

Everyone arrived late at the party for ________ reasons.

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I bought a new type of cell phone, which was the ________ of all my classmates.

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I have read the material several times but it doesn't make any ________ to me.

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