单句改错。
1. He told us about the countries where he had visited. _______
2. Egypt is a country where is famous for its pyramids. _______
3. China is the country where he spent the best part of his life. _______
4. The days when we spent together cannot be easily forgotten. _______
5. The house stands at the place that the two roads meet. _______
6. We shall visit the college where his father teaches there. _______
7. I know the reason that she looks so worried. _______
8. He left me the book, that is very useful for me. _______
9. This is the room which food is kept. _______
10. April 15, 1976 is the day when we'll never forget. _______
11. The man came yesterday is our English teacher. _______
12. The students are playing football on the playground are from Class Two. _______
13. This is all which I can do for you. _______
14. Can you think of anyone who's house was here? _______
15. The watch that Mother bought it for me works very well. _______