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单项选择:Great changes ____ in the past ten years in China .

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单项选择:Great changes ____ in the past ten years in China .
A:took  placeB:have  taken  place C:were  taking  placeD:had  taken  place
Great changes ____ in the past ten years in China .
A:took place B:have taken place  C:were taking place D:had taken place
选B.
句子中有“在过去的多少时间里”时,一般用现在完成时.如:in the past ten years,in the past two hours,in the past few weeks等等.