把下列句子改为否定句。

 1. My father listened to CDs yesterday.

     My father ______ ______ to CDs yesterday.

2. He'd like to have some porridge and onions.

    He ______ like to have ______ porridge ______ onions.

3. I think she looks like her mother.

    I ______ ______ she ______ like her mother.

4. My sister saw an interesting movie last night. 

   My sister ______ ______ an interesting movie last night.

5. Look. There are some flowers on the table.

   Look. There ______ ______ flowers on the table .

6. Take the coat to your bedroom. 

    ______ ______ the coat to your room.

7. I was free last Saturday.

    I _____ free last Saturday.

8. Lucy is doing her homework now.

    Lucy ______ ______ her homework now.

9. My sister can do it by herself (自己).

    My sister ______ ______ it by herself.

10. He has to cook dinner.

     He ______ ______to cook dinner.