one sc??
It is 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.
c)all one has to do with cattle is leave them alone while they feed themselvs and then corral them and
d)the only thing that has to be done with callte is leave them alone while they feed themselves, corral them, and
答案是C。
THIS IS A GOOD QUESTION。
C，D都符合平行结构。
但是，C的主语是all one has to do with cattle。主动形式
D的主语是the only thing that has to be done with cattle.被动形式。
C比D更简洁，而且在GMAT中主动优先于被动。
PS。我记得这是一个让背的例子，但忘记在哪里了，能否帮忙写一下题号。谢谢你。
