问题

You should be polite _______ the old.

A:talk
B:talked
C:talking
D:to talk;

正确答案是：

同类题型

I think it’s really _________ hard work for me to finish the job in twenty minutes.

I have never visited a paper factory.—

Are you free______ weekends Shall we go to the cinema,OK

_______ It’s orange.

My teacher asked me if I was worried about the test and I said “No”. But I was.