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All the preparations for the task _____,and we"re ready to start.A.completed B.complete C.had been completed D.have been completed

题目详情
All the preparations for the task _____,and we're ready to start.
A.completed B.complete C.had been completed D.have been completed
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答案和解析
D 应该用现在完成时的被动
意思是所以考试的准备都已经完成了,我们已经准备好开始了