At the end of last month, ten primary schools with the help of Project Hope. A. had set u

发布时间：2020-08-16 12:10:02

At the end of last month, ten primary schools      with the help of Project Hope.
A. had set up
B. had been set up
C. set up
D. were set up

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A. had set up
B. had been set up
C. set up
(答案→)D. were set up
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