摘要：The professor walked onto the platform and seated himself in a chair, for answering questions. A.had prepared B.being prepared C.preparing D.prepared
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The professor walked onto the platform and seated himself in a chair, ____ for answering questions.
A、had prepared B、being prepared C、preparing D、prepared
查看习题详情和答案>>The professor walked onto the platform and seated himself in a chair,________ for answering questions.
A.had prepared B.being prepared?
C.preparing D.prepared?
查看习题详情和答案>>The professor walked onto the platform and seated himself in a chair, ____ for answering questions.
A. had prepared B. being prepared C. preparing D. prepared
查看习题详情和答案>>