单句改错。

( ) 1. A bike runs many more slowly than a bus.

(     ) 2. The girl has fallen asleep for three hours.

(     ) 3. The boy looks very worrying.

(     ) 4. The girl has finished to do her homework.

(     ) 5. Thank you for give me the nice present.

(     ) 6. It's a long time since we have met last.

(     ) 7. Help yourself to some fish,children.

(     ) 8. Which would you like, a pen and a pencil?

(     ) 9. I can't find the key of my house.

(     ) 10. My parents maybe at home.