________ sure smoking is bad for your health.

［　　］

He ________ to give his best ________ for Teachers' day.

［　　］

The radio says there will be beautiful sunshine ________ North China．

［　　］

　　I ________ an art exhibition that will make me rich and famous．

[　　]

　　This time I want ________.

[　　]

　　A. to do different something

　　B. doing different something

　　C. to do something different

　　D. doing something different

In Beijing, about 200 yuan a night ________ enough in winter.

[　　]

Can we get ________ water for them? They need ________.

[　　]

My dictionary is ________ than this one. I think it must be ________.

[　　]

________ of the two women is our English teacher.

[　　]

Harbin is ________ the north of China.

[　　]