补全对话。
W：How are you?
M1：I'm ____. What's wrong with you?
W：I want to send an ____. But I don't have a computer.
M1：You can ask your teacher to help you.
W：Good ____！
W：Hello，Mr. Li. Could I use your computer?
M2：Sure. It's there on your ____.
W：Thanks，Mr. Li. It's very ____ of you.
M2：You're welcome.
