问题

It’s a long timeI saw you last.—Yes,and what a pity it is now that it will be a long timewe see each other again.[ ]

A: before; since
B: since; when
C: since; before
D: when; before

正确答案是：

同类题型

下列各句，没有语病的一项是（）

Why are the tax collectors so busy——Many people prefer to have their tax forms completedby a professional rather than ___.

that you didn’t care about this matter at all, I should not have wasted my time explaining it to you.[ ]

The horrible noise from the man’s room simply _____ me mad

The factLucy has been admitted into Lanzhou university made us excited