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A. swimming
B. swim
C. swam
D. to swim

A. is going to hike; won't rain            
B. is going hiking; doesn't rain            
C. will go hiking; won't rain            
D. goes hiking; doesn't rain

A. can play        
B. could be playing  
C. had played        
D. plays

A. are busy filling  
B. is busy filling      
C. are busy to fill    
D. is busy to fill

1. 她們計劃去歐洲旅行。
    They are _______ _______ visit Europe.
    They make a _______ _______ Europe.
2. I finished my homework yesterday. (改為同義句)
    I finished _______ _______ _______yesterday.
3. He is leaving Changchun.  He decided to go Canada.  (合并成一句)
    He is _______ Changchun _______ Canada.
4. He decided on the work. (改為同義句)
    He decided _______ _______ the work.

l.John takes photos on Friday.（用now改為現在進行時）
  John                                  now.
2. We enjoy the school trip on Sunday.（同上）
  We                      the school trip now.
3．He is visiting his friends.（對畫線部分提問）
                         he                 ?
4．Betty buys her friend a pen.（改為同義句）
  Betty           a pen          her friend.
5．They're enjoying school trip．（改為一般疑問句并作否定回答）
                              enjoying school trip?
  No，                            ．

A. plays      
B. played    
C.is playing

A. talk                        
B. talked      
C. is talking                    
D. was talking

A. waits for                  
B. waited for    
C. is waiting for              
D. was waiting for

A. sleep    
B. slept      
C. sleeps    
D. is sleeping