题目内容
4.Mary__________ really hard on her book and thinks she'll have finished it by Friday.( )A. | worked | B. | has been working | ||
C. | had worked | D. | has worked |
分析 句意:Mary一直在努力地写书,她觉得她到周五为止将会完成.
解答 答案B.分析语境可知,and之后的句子"he'll have finished it"表明书还未写完,从而推知Mary"写书"这个动作应该是从过去到现在一直进行的动作,只有B项符合语境,所以选B.
点评 本题考查时态的用法.解答此类题目的关键是要读懂句意,分析上下文的语境,判断时态,锁定答案.
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