—Did Mary come to the party?—I don't know.She__while I was out.A._英语解答

—Did Mary come to the party?—I don't know.She__while I was out.A.might have come B.might come
为什么是A不是B

人气：247 ℃　时间：2019-08-20 09:29:24

解答

选A. 表猜测,因为已发生,所以用may/might +have done
我不知道,她或许来过.（我自己也不是很有把握）