题目内容
() 7. We for six hours already. Let's stop a short rest.
A. have worked;to have B. worked;to have
C. have worked;having D. have worked;to having
7. A
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题目内容
() 7. We for six hours already. Let's stop a short rest.
A. have worked;to have B. worked;to have
C. have worked;having D. have worked;to having