1 . 单句改错
1. Please ask your teachers for help if it necessary.
2. She has no friends to depend .
3. The little boy’s father passed away to leave the family much poorer.
4. Henry was about to sit down while the telephone rang.
5. There ought to have enough space for all of us.
6. On 12 April 1961, Yuri Gagarin became the first person in the world going to space.
7. They had decided to make bet which would settle their argument.
8. We were surprised finding that he had already left.
9. The boy hardly watches TV programmes, apart for nature documents.
10. They allow visitors who has never been to China to experience traditional Chinese culture first hand.