题目内容

He promises to help us _____ we can raise enough money for the project.

A. as soon as
B. when
C. unless
D. on condition that

查看答案

搜索结果不匹配？点我反馈

更多问题

It won’t be long _____ our society can completely solve the problem of heavy pollution.

A. before
B. since
C. when
D. after

Keep quiet _____ you have finished your assignment.

A. as
B. while
C. when
D. after

_____ you know the answer, you’ll find it fairly easy.

A. Unless
B. While
C. Once
D. Though

We had no sooner arrived at the airport _____ it was time to check in.

A. than
B. when
C. then
D. before