问题

Sir, would you mind speaking a little more ______— Of course not. I thought you could follow me.

A:about, polite
B:to, impolite
C:at, polite
D:about, impolite;

正确答案是：

同类题型

Great Changes ________in Shanghai since 2000

Where is John? — He _____ in the library.

下列各句中，表达得体的一句是

Many things that were once considered useful and _____, for example, tobacco, is now thought harmful.

We would appreciate _______ if you could give us some advice on how to solve this problem.