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        1. 精英家教網 > 高中地理 > 題目詳情

          33. When I came back,I noticed that he was still sitting in the office.He seemed_________ for someone.

          A.waited                      B.to have waited

          C.to be waiting                 D.to wait

          C


          解析:

          不定式to加進行時態(tài),表示“……正在做”,句意為“他坐在那兒,似乎正在等人”。?

          答案:C?

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