In chinis recognizedacross the world.

— Do you think we should accept that offer?— Yes, we should, for we ____ such bad luck up till now, and time ____ out.[ ]

The river goes _________ the city and many people like to have a race to swim ________ it every summer.

You’d better not _______ these twosentences, otherwise thereaders cannot fully understand you.

31All his attention______on the computer game, so he even didn’t notice his mother enter the room