问题

Zhengzhou was attacked by such a terrible sandstorm ________ few residents had ever experienced before

A:which
B:as
C:where
D:that

正确答案是：

同类题型

Luly can speak____Chinese— _____

Educationists across China are experimenting and trying out new assessing systems _______to assessing students’ performance in school.[ ]

Have you ever been in a situation _____ you know the other person is right yet you cannot agree with him?

I’m sorry I left my football at home.—That’s all right. Don’t forget _______ it here tomorrow.

When you keep your promise, no matter how much effort (努力) it takes, you will be .