I would appreciate _________ it a secret.

I would appreciate _________ it a secret.
I would appreciate _________ it a secret
.A.your keeping\x05\x05B.you to keepC.that you keep \x05\x05D.that you will keep 选什么,为什么

A appreciate doing sth
所选的是动名词的所有格形式.
再问： 怎么不选b呢
再答： 动词后不跟to do
再问： 奥，那怎么会有这个句子 None is allowed to smoke in waiting room
再答： 我是说appreciate动词后不跟，你理解错了。像，finish，enjoy后只跟doing结构。