A. Yes, it does.
B. No, it doesn't.
C. Yes, it is.

A. Yes, I am.        
B. Yes, I do.

1. I can play the piano. (改為疑問句)
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2. I will promise to write to you. (改為疑問句)
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3. We are going to go to America. (就畫線部分提問)
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4. I am very well. (改為同義句)
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5. I can go to the party with my friends. (改為否定句)
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A. No, he doesn't.      
B. Yes, he doesn't        
C. No, he does

1. There are fifty students in the classroom.（對畫線部分提問）
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2. I like the red and green sweater. （改為否定句）
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3. Tim's shirt is under the chair.（對畫線部分提問）
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4. There is some milk in the glass.（改為一般疑問句）
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5. This bag is heavier than that bag.（改為同義句）
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6. They are working very hard.（改為感嘆句）
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A. this is    
B. it's     
C. it is    
D. it's not

A. Yes, it is        
B. No, it isn't      
C. No, that isn't  
D. Yes, that is

A. she is          
B. she isn't        
C. it is          
D. it isn't

A. No, they aren't          
B. Yes, it is          
C. No, it isn't

A. No, I don't know        
B. Yes, I want a book  
C. No, please