问题

I’ll go to your party___ you promise me that you will invite our class advisor

A:if only
B:only if
C:unless
D:since

正确答案是：

同类题型

_the strong winds continue, part of the highway would still be temporarily closed.

If water becomes increasingly scarce in decades _______, water shortage will become a hot issue all over the world.[ ]

“We can’t go out in this weather，”said Bob，________out of the window.

HeiLihe(黑里河) is west of DaMing（大明）and it is also the west of NingCheng.

Can you tell me _______ when I called you