. They did everything they could to prevent the pollution the river.A. protectingB. to pr
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解决时间 2021-03-12 04:19
- 提问者网友：你给我的爱
- 2021-03-11 08:42
. They did everything they could to prevent the pollution the river.
A. protecting
B. to protect
C. from being protected
D. from protecting
最佳答案
- 五星知识达人网友：愁杀梦里人
- 2020-01-24 14:38
A. protecting(答案→)B. to protectC. from being protectedD. from protecting解析：可联系答.案.网客服索取。
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- 1楼网友：毛毛
- 2020-01-03 01:28
对的，就是这个意思
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