5. Salt is produced in the sea.(改为一般疑问句)

4. Jenny is seen by Bob to come out of the classroom.

(改为主动语态）

3. My father made me go there alone.(改为被动语态）

 2. This book was written by Lu Xun.(改为否定句)

1. My brother opens the windows.(改为被动语态)

(    ) 5. A friendly basketball match between teachers

and students        tomorrow    afternoon.

Anybody is welcome.

A. was held    B. must be held

C. is held    D. will be held

(    ) 4. They       day and night.

A. are made work

B. made to be worked

C. are made to work

D. are making to work

(    ) 3. Must the flower       by you?

A. is water    B. be watered

C. be water    D. been water

(    ) 2. —I think drinking milk is good      

our health.

—Yes. I agree       you.

A. for； with    B. to; to

C. with； to    D. at； with

(    ) 1. Many trees and flowers        in    our city

every year. 

A.    planted    B. are planted

C. were planted D. plants