万用英语口语句典04.01.01寄信

04.01.01寄信
1, Can I buy some stamps and envelopes here?
2, I wonder if this letter is overweight.
3, I'd like to mail this letter to America by certified mail.
4, I want to sent this letter by registered mail.
5, Could you lend the glue to me?
6, How long does it take for an airmail to get to the America?
7, What's the postage for an airmail to the UK?
8, Does the letter has anything valuable inside?