词形变换，用所给单词的适当形式填空。
1. In western country Sunday is the ___________(one) day of the week.
2. A lot of ___________ (visit) visited the Great Wall last year.
3. Tom decided ___________ (not be) late for school again.
4. I find it important ___________ (learn) English well.
5. A dog has four ___________ (foot).
6. How about ___________ (swim) with us?
7. John is ___________ (thin) than Carol.
8. Did you have fun ___________ (camp)?
9. We ___________ (buy) some gifts in the Gift Shop the day before yesterday.
10. Could you please ___________ (clean) the floor?