I can't decide____ A.to buy which one B.which one to buy C.to buy which D.which to buy one

问题描述:

I can't decide____ A.to buy which one B.which one to buy C.to buy which D.which to buy one
为什么这么选?

根据decide可以排除AC,不能用to
根据语序,D也错
选B那decide to do sth是什么时候用?VERB决定,拿定主意(做)If you decide to do something, you choose to do it, usually after you have thought carefully about the other possibilities. 这里是宾语从句,不一样的,decide to do 这个搭配有的,这里出现了特殊句式,搭配就不存在了