摘要：2．Great changes in China in the past 20 years. A. took place B. have taken place C. were taken place D. have been taken place
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Great changes ______ in China in the past 20 years.
[ ]
A. took place
B. have taken place
C. were taken place
D. have been taken place
Great changes ______ in China in the past 20 years.
A. took place B. have taken place C. were taken place D. have been taken place
查看习题详情和答案>>Great changes ______ in China in the past 20 years.
A. took place B. have taken place C. were taken place D. have been taken place
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