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英语
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Great changes ------ in China since 1978
是took place 还是用现在完成?过去完成
人气:129 ℃ 时间:2019-09-24 05:41:49
解答
由since、for引导的时间状语,谓语动词要用现在完成时.
例如:I have been here since 2009.
I have been here for two years.
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