Can I buy some stamps and envelopes here? 这儿卖邮票和信封吗？

　　Yes. How many stamps and envelopes do you want to buy? 是的。您要买几张邮票和几个信封？

　　Could you tell me where I can get the registered envelope and some stamps? 请告诉我在哪儿能买到挂号信封和邮票？

　　Excuse me. Could you tell me where I can get the registered envelope and some stamps? 请问我在哪儿能买到挂号信封和邮票？

　　At that counter. 在哪个柜台。