I think it’s very dangerous to drive six hours without a rest.—I agree. Six hours really a very long time.

He asked __________ for the overcoat.

Eric, are your parents angry about your English in this exam?—Oh, of them is angry. They just told me to get better grades next time.

I hear this kind of CD-ROM is very popular.–Let’s buy one before it ____________.

In China, people walk ________ of the street(街道). [ ]