W: Hello, young man. What’s wrong with you?

M: I just can’t sleep at night.

W: How long have you been like this?

M: Er, two days.

W: Right, two days. Now open your mouth"and"say “Ah”!

M: Ah…"And"then I’m tired all day at work.

W: Well, don’t worry. Nothing serious. But try to go to bed at the same time every night,"and"get enough exercise.

M: OK.

W:"And"don’t drink too much tea at night. You’ll be all right soon.

M: OK. Well, I’ll try that. Thanks a lot.

W: You’re welcome.