3. They ought to leave the baby alone.(改为否定句）

They__      leave the baby alone.

2. If you work hard,you won’t fail the exam.(改为同义句） 

__      ,  you’ll  fail  the exam.  

1. We should help each other.(改为同义句)

We__      help  each  other. 

(   ) 5. The ten cleaners collect all kinds of garbage in the park,then          them so that they can be recycled.

A. sort B. sorts C. recycle D. kind

(   ) 4. —Would you like to have          to  drink now?

—No，thanks.

A. anything cool     B. cool  something

C. something cool     D. cool  anything

(   ) 3. —Remember          TV  before you leave home.

—OK,I will.

A. to turn     on  B. to turn down

C. to turn     off  D. to turn up

(   ) 2. —What        I  to  say  to  him?

—Tell him to save water.

A. shall     B. will

C. should     D. ought

(   ) 1. He stayed home instead of        because  of the heavy rain.

A. go out     B. goes out

C. going out     D. went out

5. I often walk to work__(而不是）going by bus. 

4. We__(应该）protect our environment.