问题
I have two grammars, ______are of great use.
A:all of which
B:either of which
C:both of that
D:both of which
B:either of which
C:both of that
D:both of which
正确答案是：
同类题型
The boy _____ love with the toy the moment he saw it.
Can you _________ my dog when I am on holiday, Tom —- Sure.
The climate _______ the amount of the rainfall.And this kind of climate has no _______ on my health.
Tom, what a pity. I almost succeeded yesterday. —I told you to be careful before. ______.