You can,t get in.The exam___for over 30 minutes. A.has been

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You can,t get in.The exam___for over 30 minutes. A.has been on B.has began C.began ...
You can,t get in.The exam___for over 30 minutes.
A.has been on B.has began C.began D.begins
选择哪个?为什么,能能详细讲解一下下呵,谢谢各位亲~急呵,今晚就要!
为什么不选B呢？

因为begin是短暂性动作,而测试已经开始了30分钟,是持续性动作.所以用has began 这一表达方式就不对

The old lady can't hope to get over her cold in a few days翻译 the class -t-for 15 minutes.A:has begun B:has been on can't get over you--ice Can'T Get Over You 歌词 I Can't Get Over You 歌词 Can't get over 英语翻译1.The film has been on for ten minutes .You are a little 英语翻译Tremendous in-roads has been made over the last two to t We can easily get from the computer _ has been stored in it. we can easily get from the computer ( )has been stored in it We can easily get from the computer _____ has been stored in You can't get flower in the park.(改祈使句)