885-S18-11

以下是引用exan在2003-10-28 0:14:00的发言：
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

Key is C
The structure of C:
It is an view that all (one has to do with cattle) is leave them alone and then corral them and drive them...

all is do A and then do B and do C

But I think that it should be "all is to do A and then to do B and to do C"

以下是引用xianwharton在2003-10-29 10:58:00的发言：
all sb has to do is do and do ...is an idiomly useage.