Afterhalfayear’straining,theywere

发布时间：2020-07-11 11:35:31

After half a year’s training, they were made entirely used   ____     underwater













A.stay












B.to stay











C.to staying











D.staying

网友回答

C解析考查短语搭配。be used to doing sth习惯于某事，这里是适应的意思。句意：经过多年的训练,他们已经完全适应在水下。
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