题目内容
【题目】As we all know, great changes _______ in China in the past thirty years.
A. took place B. have taken place
C. happened D. have happened
【答案】A
【解析】句意：正如我们所知道的，在刚刚过去的三十年里巨大的变化发生了。此题考查一般过去时。根据句意，应选A。
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题目内容
【题目】As we all know, great changes _______ in China in the past thirty years.
A. took place B. have taken place
C. happened D. have happened
【答案】A
【解析】句意：正如我们所知道的，在刚刚过去的三十年里巨大的变化发生了。此题考查一般过去时。根据句意，应选A。