Great changes in my hometown and a lot of factories .A. have been taken place; are being

问题补充：

Great changes in my hometown and a lot of factories .

A. have been taken place; are being set up

B. have taken place ; have been set up

C. are taken place ; had been set up

D. had taken place; will be set up

答案：

A. have been taken place; are being set up

(答案→)B. have taken place ; have been set up

C. are taken place ; had been set up

D. had taken place; will be set up

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