英语中问题.问:How many stamps will I need?That will be three seven

英语中问题.
问:How many stamps will I need?
That will be three seventy-five.
how many does the man man buy?
听力原文。
I'd like to send this letter to china,by airmail.How many stamps will I need.
(your letter,please,That will be three seventy-five).
How long will it take to get there.
(usually one week.if you want it to arrive faster,you can send it by express post)
No thanks.Actually it isn't very urgent.olease give me the stamps
(here you are.what else can i do for you?)
i'd like two 20 cents stamps.
(anything else?)
Not now.