问题

We have been expecting Rio 2016 Olympics_______ the Olympic flame(圣火) was lit.
A:if
B:unless
C:since
D:though ;
B:unless
C:since
D:though ;
正确答案是:
同类题型
_______ of the consequences , he did whatever he liked to and nobody could stop him
What did you do _______ the little girl _______ herparents just now
269. Although he didn’t mention any names, everyone knew _____ he was _______.
Excuse me, could you ____________ me a minute,please I would like to talk to you. —Sure!