A、Some bank notes. B、A check and some photos. C、An invitation card. D、Some pictures. B本题的问题关键词是what。对话中提到这封信里含有check和photograph

M: May I help you?
W: Yes, I’d like to send this letter to my family in Da Lian.
M: Did you write your return address on the envelope?
W: Yes, I did.
M: How do you want to send it?
W: I guess I’ll send it by airmail.
M: Does it have anything valuable inside?
W: Yes. I enclosed a check and some photographs.
M: Then you’d better send it by registered mail.
W: That’s good idea. Will you take care of that for me?
M: I’m sorry, miss. You’ll have to take your letter to the Window 8.
W: Thanks a lot.
M: You are welcome.
6. What was enclosed in the woman’s letter?
7. How must the letter be sent?