Don’t ______the rubbish everywhere . It’s our duty to protect the environment.— I’m sorry.I won’t do that again.

The book ___ to me is very interesting.

If I _______ plan to do anything I wanted to, I’d like to go to Tibet and travel through as much of it as possible.

The 2010 Expo will take place in Shanghai, ________ many countries consider a good chance to introduce their cultures to the world

The meeting is important that you mustn’t miss it. (盐城)