一、根据句意及提示填写单词
1. —W______ is your brother's birthday?
—It's on August 6th.
2. There are 12 months in one year. September is the n______ month.
3. The second month of a year is F______.
4. I often buy ______ (礼物) for my parents on their birthdays.
5. March is the ______ (第三) month of a year.

1. When 2. ninth 3. February 4. gifts 5. third

二、用所给词的适当形式填空
| be, month, when, in, twelve |
1. December is the ______ month of a year.
2. How old ______ your parents?
3. Mary's birthday is ______ March.
4. —______ do you usually start doing your homework?
—After dinner.
5. My parents' birthdays are in March and April, so they are my favourite ______.

1. twelfth 2. are 3. in 4. When 5. months