1. How long has it been since you've heard from your uncle?从你上次接到你叔父的`信以来有多长时间了？
2. When was the last time he wrote you?他最后一次写信给你是什么时候？
3. I can't recall how long it's been.我回忆不起来有多久了。
4. I'm always disappointed when I don't get any mail.接不到任何邮件时，我总感到失望。
5. I feel guilty because I haven't written her lately.我感到内疚，因为我近来一直没有写信给她。
6. What time is the mail delivered on Saturday?星期六的邮件是在什么时间投送的？
7. The postman always comes at 2 o'clock.邮递员总是两点钟来。
8. I wrote to my uncle last night. I couldn't put it off any longer.昨晚我给叔叔写了信。我不能再拖延了。
9. I enclosed some photographs in my letter.我在信里附了几张照片。
10. I didn't know whether to send the letter airmail or not.我不知道这封信是否要用航空发出。
11. How long does it take for a letter to get to California? 往加利福尼亚州寄信得多长时间？
12. Don't forget to put stamps on the letter before you mail it.发信前别忘了贴邮票。
13. He went to the post office to mail a letter.他到邮局寄信去了。
14. 599. I dropped the letter in the mailbox on the corner.我把信投入拐角处的邮筒里。
15. How did you sign the letter? Did you write, "Sincerely yours"?你在信上是怎么署名的？你写上“忠实于您的”了吗？
