A. needn't      
B. shouldn't      
C. couldn't        
D. don't need

A. prefer
B. want
C. choose
D. miss

[     ]

A. costs
B. spends
C. takes
D. pays

1. Let’s _____ (sing) this song together.  
2. Sam doesn’t want _____ (clone).  
3. Scientists can even _____ (combine) a plant and an animal.  
4. Try _____ (make) a funny story   
5. I think it would be fun _____ (clone)myself.

[     ]

A. stay
B. staying
C. to stay
D. stayed

A. left          
B. leave
C. leaving        
D. leaves

1. Would you mind opening the window? (改为否定句)
    ______ you_______ _______ opening the window?
2. I am still hungry.I want to eat another cake. (改为同义句)
I am still hungry. I______ ______ ______another cake.
3. I will take my sister to see the doctor. (改为一般疑问句, 并作否定回答)
    — ________ ______take_______ sister to see the doctor?
    — ________, ______ _______.
4. He goes to the cinema three times a week. (对画线部分提问)
    ________ _______ _______he_______ to the cinema?
5. I like skating better than skiing. (用prefer…to…改写)
    I________ ________to_________.

A. wish
B. to wish
C. hope
D. to hope

1. The man has left China. The man has _____ _____ _____ China for 20 years.
2. The movie has finished. The movie has _____ _____ for half an hour.
3. I have borrowed the book. I have _____ the book for a month.
4. He has joined the Party. He has _____ _____ the Party for 30 years.
5. I have bought the bike. I have _____ the bike for 6 years.

A. recommended    
B. remembered      
C. replied    
D. reminded