第二节：补全对话(本节5小题，每小题1分，计5分)
【2013四川宜宾】阅读下面对话，从方框中选择适当的句子补全对话（其中有两项是多余的）。
A: It’s very late. Are you still on the computer?
B: Well, yes. ____36____
A: What kind of e-mails?
B: Some are messages from my friends and some are from the relatives.
A: Do you have to write them back right away?
B: ____37____ Usually people want a quick reply.
A: ____38____
