问题

I was so familiar with her that I recognized her voice ______ I picked up the phone. [ ]

A: the moment
B:AIDU_
C: before
D: while

正确答案是：

同类题型

Liu Ying is good at singing. She sings ______the famous singer, CoCo.

Who did the teacher ________ the exercises?

There is a small object ________ a pin on the desk.[ ]

It’s important ____the piano well.

He is a serious man. Few people can make him .