有20只鸽子，如果每6只鸽子住一个窝。这些鸽子需要多少个窝？
20÷6=3（个）……2（只），3+1= 4（个）
根据句意及首字母提示,完成下列单词拼写。
1. N________ is the eleventh month of a year.
2. Lily and Lucy like listening to pop m______.
3. E________ is the number between the seventh and the ninth.
4. His b________ is April 5th.
5. My grandma is eighty. She is very o______.
6. September is the n________ month of a year.
7. ---What d________ is it today?
---It's Sunday.
8. O________ 1 is the National Day.
9. We'll have a volleyball g________ this afternoon.
10. We have two Art F________ in a year.
人畜粪便和喷过农药的蔬菜茎叶等都可作为沼气发酵原料
