题目内容

改错题。
1. The twin sisters have learned a lot after they
    came to China.
2. Although he ran very quickly, but he was late
    for class again.
3. Have you returned back his money to him?          
4. I have gone to the Sunshine Town twice.
5. Have there had a school for more than 100 years.
6. It has been in used since 1998.                     
7. We have known each other since a long time. 
8. His father have gone out for a whole day.             
9. Tom used to gone to school by bus on his own. 
10.  He's already weak in English, hasn't he?         
________

________

________
________
________
________
________
________
________
________
1. after-since  
2. but 去掉  
3. back 去掉  
4. gone-been  
5. had-been
6. used-use    
7. since-for 
8. have-has
9. gone-go  
10. hasn't-isn't                                                 
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