Beijing is the capital of China and it is one of ______ cities in the world.

.—How can I get along _____with others, Dad?—Try to smile to others, boy. That will make ________much easier.

When are you going to Hainan? — I am going there _____ June 8, 2007. [ ]

Must I hand in our homework today?— No, you ______.

They tried to run away but the police caught them _____. [ ]