题目内容
13.Since its start,WeChat ________ into the most popular messaging communication service in China.( )A. | has developed | B. | developed | C. | develops | D. | was developing |
分析 在中国,微信从它出现的时候起,已经成为最受欢迎的信息交流平台.
解答 答案:A 本题考查现在完成时态的用法.题干中,since its start从它开始出现起,是表示从过去到现在的持续时间段,是完成时态典型的时间状语.故选A.
点评 现在完成时态的用法:表示从过去持续到现在的动作;表示过去的动作对现在的影响或造成的结果.本题表示持续的动作,通常与since,for引导的时间状语连用.
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