A：I want to go online.

B：You can use my WI-FI. The password is “567abc”.

A：Thanks . Oh Gosh ! I can’t go on line, my computer has crashed.

B：Really？

A：Yeah , I need to check my email. Can I use your laptop？

B：Yes ,you can.

A：Ah! Seeing this email reminds me that I have to send an air express package today. It’s getting late, the post office will be closed after 30 minutes. I have to send the package before 6 pm.

B：You have to go now.

A：Yes, I have to go now. Thanks for your help. See you.

B：See you.