作业帮英语 单项选择 (27 21:4:9)we must do everything we can___waste water from running into rivers A:keep B:kept C:to keep D:keeping
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英语 单项选择 (27 21:4:9)we must do everything we can___waste water from running into rivers A:keep B:kept C:to keep D:keeping
英语 单项选择 (27 21:4:9)
we must do everything we can___waste water from running into rivers A:keep B:kept C:to keep D:keeping
英语 单项选择 (27 21:4:9)we must do everything we can___waste water from running into rivers A:keep B:kept C:to keep D:keeping
A.
毫无疑问,can是情态动词,后面直接接动词原形
a， can加动词原形
C
表目的用to do
can是属于前半句话
C:to keep,
这里的do everything we can相当于do one's best【尽某人最大的努力】，固定句型;do one's best to do sth:所以选择C
C:to keep
keep ... from doing 防止/阻止....做....
A can是情态动词，后面的keep用原形
选C
we can做的是everything的后置定语 所以做题时可以去掉不看
to keep waste water。。。中的 to keep是不定式做目的状语
句子意思是
我们可以做能做的任何事情来阻止污水流入河里。
C
动词不定式在这表目的。
c we can 是everything 的后置定语，用来修饰的。TO keep 不定式做状语。