精英家教网 > 初中英语 > 题目详情
9.-Ming ming,you _______TV for three hours.You should have a rest.
-OK.Mum.(  )
A.have watchedB.are watchingC.watches

分析 ---明明,你已经看电视三个小时了.你应该休息一下了.---好的,妈妈.

解答 答案:A.根据"you _______TV for three hours"中的"for three hours"可知看电视这个动作从过去一直到现在有三个小时了,与现在有关,表动作从过去延续到现在,要用现在完成时,现在完成时的构成:主语+have或has+动词过去分词,故选A.

点评 本题考查现在完成时,掌握现在完成时的意义,构成,根据关键词确定时态.

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