问题描述：
1、I was woken up by a----noise last night
2、The Browns are ----a visit to Shanghai.
A.at B.in C.of D.on
3、It doesn't often rain----snow in the winter.
A.and B.or C.with D.yet
2、The Browns are ----a visit to Shanghai.
A.at B.in C.of D.on
3、It doesn't often rain----snow in the winter.
A.and B.or C.with D.yet
问题解答：
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