Lots of work to fight pollution. [ ] A．have done B．has done C．have been done D．has been done 题目和参考答案——青夏教育精英家教网—

题目内容

Lots of work ________ to fight pollution.

[　　]

A．have done	B．has done
C．have been done	D．has been done

答案：D

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2.What’s his j________ ? He’s a teacher .

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8.I can’t a________ that question. It’s too difficult.

9.Best w__________ to you , Miss Jin .

10.Kate , please w_________ your name on the card .

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