题目
A.resting
B.operation
C.vomiting
D.infected
第3题
We () for you everywhere. Where have you been。
A.have looked
B.looked
C.have been looking
D.are looking
第5题
You have been working for a long time. Why not stop having a rest?()
第8题
A.have been waiting for
B.are waiting for
C.had waited for
D.waited for
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