请教一道语法题！

dedeyuky · 发表于 2011-9-4 00:57:39

It is an oversimplified view of cattle raising to say that all one has to do with cattle is leave them alone while they feed themselves, corral them, and to drive them to market when the time is ripe.

(A) all one has to do with cattle is leave them alone while they feed themselves, corral them, and to

(B) all one has to do with cattle is to leave them alone to feed themselves, to corral them, and

(C) all one has to do with cattle is leave them alone while they feed themselves and then corral them and

(D) the only thing that has to be done with cattle is leave them alone while they feed themselves, corral them, and

(E) the only thing that has to be done with cattle is to leave them alone while they feed themselves, to corral them, and

答案选C。但我觉得D也没问题啊~请NN指教！！

senine16 · 发表于 2011-9-4 11:49:23

三个考点：
（1）to do + be 后接不定式时可省略 to；
（2）sth to do 不定式主动表被动。
（3）并列。

dedeyuky · 发表于 2011-9-4 21:34:38

THX!!

请教一道语法题！

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