A Computer Problem

A: Hey, I'm Rick. I'm from the IT Department. You called about a computer problem?
B: Hi, Rick. Yeah, I did. My computer isn't working. I can't turn it on. Could you help me?
A: Sure, let me take a look.

A: When did you notice your computer wasn't working?
B: I noticed this morning. When I left work last night, my computer was still working. But after I got to work today, I couldn't turn it on. It's so weird!

A: How often does your computer crash？
B: It doesn't crash often. Sometimes I leave it on overnight. If I leave it on, it may crash. But it always works again when I restart it.
A: Umm. Okay. Could you move your desk a little bit? I want to look behind your computer.

A: Let's see here. Is your computer working now?
B: Yes, thank you so much! What was wrong with my computer?
A: Hehe, it wasn't plugged in!
B: Oh my god! I'm such an idiot! But why wasn't my computer plugged in？
A: Sometimes the janitor unplugs the computer when he's cleaning.
B: Of course. Sorry for wasting your time.
A: Don't worry about it. Stuff happens.

janitor [ˈdʒænɪtər]
n. (建筑物的) 管理人，看管人，门房;

unplugs [ˌʌnˈplʌɡ]
v. 拔掉…的电源插头;

Exercises beyond the original
Q: How did he fix her computer?
A: He plugged her computer back in