句型转换。

1.We're trying to protect the environment.(对划线部分提问) 

    _____are you trying _____ _____?

2.There used to be a lof cheetahs.(改为反意疑问句)   

   There used to be a lot of cheetahs,______ ______?

3.They made Victor weigh himself just now. (改为被动语态)   

   Victor______ ______ ______ to weigh himself just now..

4. They weigh about 1,ooo pounds. (对划线部分提问)

    ______ ______ do they weigh?

5. I think what you said is right. (同义句)   

    I______ ______you..

6. There's something wrong with the watch .(一般疑问句)  

     ______ there ______ wrong with the watch ?

7.I like to go out to play, and I don't like to stay at home.(同义句) 

   I prefer to play outside ______ ______stay at home.