题目内容
18.Over 2,000 people ________ the annual PC exhibition since it started on Friday.( )A. | are visiting | B. | have visited | C. | visited | D. | had visited |
分析 自从年度电脑展览会于周五召开以来,已经有2000多人参加.
解答 答案:B.
根据句中的时间状语since it started on Friday可知,应该使用现在完成时;故选B.
点评 本题考查现在完成时的用法,要格外留心一些典型的时间状语对于做题是很有帮助的,over the past decade,so far,since 1996等.
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