问题 改错题
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?         
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答案

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                                                 

单项选择题
问答题 简答题