3. I really don't know what I can do to help her out.(改为简单句)

I really don't know what to help her out.

2. I wonder where to buy you some food.(改为复合句)

I wonder where buy you some food.

1. I enjoy rock music because it is exciting.(对画线部分提问)

 do enjoy rock music?

() 8. People drive after drinking alcohol (酒) . It’s against the law.

   A. mustn’t   B. needn’t    C couldn’t   D. wouldn’t

() 7. — Look!It be David in the classroom.

--It be him. Because I saw him in the library a moment ago.

   A. may;mustn't   B. must;can t

   C. can;should   D. mustn t;can

() 6.  (2015 •永州) Could you please tell me next?

   A. how to do   B. how to do it   C. what to do it

() 5.  (2015 * 自贡) I really don't know this question. It is too hard.

   A. which to answer   B. how to answer   C. what to answer

() 4. Our teacher often tells us in the river. It s dangerous.

   A. don't swim   B. not swim

   C. not to swim   D. not swimming

() 3. Remember off the lights when you leave the room,please.

   A. to turn   B. turning   C. turn   D. to turning

() 2. He has to out for his diet because of his serious stomach problem.

   A. watching   B. watched   C. watches   D. watch