题目内容
-How long ________ each other before they ________ married?
-For about a year.
[ ]
A.have they known; get
B.did they know; get
C.did they know; were going to know
D.had they known; got
答案:D
提示:
提示:
|
know发生在married之前。故用过去完成时。 |
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