_____ in the engine room the motormen could hardly talk each other.A.To workB.WorkingC.Ha

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_____ in the engine room, the motormen could hardly talk each other.

A.To work

B.Working

C.Having worked

D.worked

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。