问题

We have been expecting Rio 2016 Olympics_______ the Olympic flame(圣火) was lit.

A:if
B:unless
C:since
D:though ;

正确答案是：

同类题型

The house that _____ by the fire belongs to

1Finally, tired happy,we took the subway back home.

My grandmother alot of changes in Tianjin since she came here.

Our physics teacher told us light __________ fasterthan sound last term.

My mom is from Germany and my father is from______ .