题目内容
When did you ___ him?
| A.know | B.knowing | C.get to know | D.get to knowing |
C
know是持续性动词。一般不用when来提问持续性动词,而get to know就解决了这问题,D项语法结构错误。
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题目内容
| A.know | B.knowing | C.get to know | D.get to knowing |