—Who do you think will get the first prize?
     —Mary, of course. She ________ for the competition for months.
A.is preparing B.was preparing
C.has been preparingD.had been preparing
C

試題分析:考查時態(tài)。本題的關(guān)鍵在于后面的時間狀語for months,該短語要和完成時或者完成進行時連用,強調(diào)動作從過去開始持續(xù)到現(xiàn)在。句意:—你認為誰會獲得第一名?—當(dāng)然是Mary。在這幾個月里她一直都在為這次比賽做準備。故C正確。
考點:
點評:時態(tài)題的考查關(guān)鍵是抓住句子的上下文含義和句中的時間狀語。要根據(jù)時間狀語來選擇合適的時態(tài),在平時的學(xué)習(xí)中要注意積累有關(guān)時態(tài)的用法和各種時態(tài)的特殊之處。如since, so far等經(jīng)常與現(xiàn)在完成時連用。在條件狀語從句中用一般現(xiàn)在時代替將來時等等。
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