问题
._________ it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun.
A:That
B:What
C:Which
D:Whether
B:What
C:Which
D:Whether
正确答案是：
同类题型
(2014·日照模拟)What I value most for a holiday is________I relax myself after the heavy work
Our English teacher is back home from Britain now.–Yes, she _____there for just three months.
I haven’t seen her ____ the past few years
I’m afraid that I can’t pass the English exam next week.-_______. Just try your best.
There are other matters which I don’t propose to ______ at the moment