Is_____ necessary ____them to stop ________ every two hours?A．that; for; resting
题型：不详难度：来源：
Is_____ necessary ____them to stop ________ every two hours?| A．that; for; resting | B．that; of; to rest | C．it; for; to rest | D．it; of; resting |
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答案
| C |
解析
| it is necessary for sb to do sth “对于某人来说有必要做某事”，stop to do 停下来做另一件事，stop doing停止做某事，答案C。 |
举一反三
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