1 . 单句改错
1. As production up by 60%, this company has had another excellent year.
2. Looked back on my high school life, I’ve learnt a lot from my teachers and classmates.
3. Sam liked playing and was afraid of difficulties, but he fell behind others in his studies.
4. My son asked curious why water becomes ice in the refrigerator.
5. As everyone knows, it is important for us to have good rest at night.
6. I look forward to win the match in the coming season.
7. In order to find Cinderella, the prince visited each of the girl in town.
8. Last winter, many traffic accidents had happened just because of the snow.
9. They suddenly became aware on the risk of doing so.
10. My legs were getting heavier and heavier and it hurt a lot.

2 . The wild animals are in great danger now. Let’s protect ________.

A．they

B．them

C．their