Shenzhen is on coast near Hong Kong．It was--small village many years ago．（　　）

-Is this computer？

-Yes，it's ．My mother bought it for me．（　　）

When you break the rules，you should to your teacher．（　　）

Don't stand too close to North Americans．You'd better give them more personal ．（　　）

The earth is a planet and it around the sun．（　　）