We must do something to _____ factories _____waste water into the river before it is cleaned. A.sto

题目简介

We must do something to _____ factories _____waste water into the river before it is cleaned. A.sto

题目详情

We must do something to _____ factories _____waste water into the river before it is cleaned.
A.stop; pouring . B.prevent; to pour C.keep; pouring D.stop; to pour
题型:单选题难度:偏易来源:不详

答案

A

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