someing must be 【】to stop this A.do.做B.did do过去式C.doing 正在做D.done 已完成
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someing must be 【】to stop this A.do.做B.did do过去式C.doing 正在做D.done 已完成
someing must be 【】to stop this
A.do.做
B.did do过去式
C.doing 正在做
D.done 已完成
someing must be 【】to stop this A.do.做B.did do过去式C.doing 正在做D.done 已完成
Something must be (D.done) to stop this.
一定要采取措施来阻止这个.
be done,(事情)被做.这里要用被动语态,结构是由be动词加上过去分词(do-done).
选D.done
这句应该是这样的something must be done.一定有事被做了,来停止这件事。
to stop this 是目的状语从句。
谢谢
D.. 语感可是如果翻译过来,这句话的意思是我们必须停止某些东西的运作,这个运作应该是在进行中,因为如果是还没开始就不用开始,已经结束就不用停运啊,所以应该是在进行中的,这样看来did就不可能的了,do是一般时,done是完成时,doing是进行时,...
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D.. 语感
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someing must be 【】to stop this A.do.做B.did do过去式C.doing 正在做D.done 已完成
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