measures have been taken to prevent the pollution ___lakes and riversclean .A.having made B.making C.to make D.to have m
measures have been taken to prevent the pollution ___lakes and riversclean .A.having made B.making C.to make D.to have made答案是什么,并給于解釋,
英語人氣:317 ℃時(shí)間:2020-05-17 18:47:16
優(yōu)質(zhì)解答
選Bprevent用法有兩種 1,prevent something:防止某事,杜絕某事,阻止某事 2,prevent A from B:阻止A...B,把A從B身邊隔離開來 在prevent的主動(dòng)語態(tài)中from可以省略,但是在prevent的被動(dòng)語態(tài)中不能省略這里是第二種情況,...
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