They are working hard to （　） what they have lost.

单选题

They are working hard to （　） what they have lost.

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单选题

---What‘s the problem, Vincent? ---Although my company has made a lot of money, it ______ that the people are working hard, but they are unhappy.

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单选题

WHEN GASES ARE HEATED,THEY ( ) .

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单选题

Nowadays,more people are living closer together,and they use machines to produce leisure.As a result,they find that their leisure,and even their working hours,become（ ）by a byproduct of their machines,namely,noise.Noise is in the news;it has acquired political status,and public opinion is demanding,more and more insistently,that something be done about it.

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