根据所给首字母，完成单词。

1. How do you plan to c_______ your father's birthday?

2. Don't forget to buy a p_______ for your friend.

3. Are there any English-Chinese d _______ in your school library?

4. The second month of a year is F_______.

5. A: What's the s _______of your present?

    B: It's round.

收件人事先申请改寄的邮件自申请之日起在（）内到达的邮件办理改寄。