问题

I was so familiar with her that Irecognized her voice ________ I pickedup the phone.

A:what what
B:after
C:before
D:while

正确答案是：

同类题型

is really hard them to climb Mount Huang.

What can I do for you, madam— _______________,please.

There are many _________in Suzhou, I want to go there again.

It won’t be long ________we meet again

In no time _______ me if he had any further information for pig flu