We must do what we can to ____________the river ______________.
发布时间:2021-07-10
A.protect; against polluting
B.stop; polluting
C.keep; being polluted
D.prevent; from being polluted
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A.pay
B.apply
C.attach
D.associate
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A.Lovely
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A.was blamed to
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A.broken
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开始考试点击查看答案 - 6Although I hadn't seen Tom for years , I immediately ______him ______in the crowd .
A.picked ; up
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A.concern
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