◎ 题干
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
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“改错题。1. The twin sisters have learned a lot after theycameto China. 2. Although he ran very quickly, but he was late for class again.3. Have you returned…”主要考查了你对  【名词】【实义动词】【系动词】【介词】【从属连词】【主谓一致】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。