A、His mother’ s use of the washing machine B、His father’ s turning on the microwave oven. C、His long hours of watching TV. D、The

W: You don’ t look smart this morning. I can see you’ re not happy.
M: I had never expected this would have happened to me. We had a power failure at home last night.
W: How come? Did anyone in the family do anything wrong?
M: You’ve guessed it. It was all my father’s fault.
W: What did he do?
M: I was just watching a wonderful football feature program on TV when the lights suddenly went out.
W: Why was that?
M: You see, we’ d just had our dinner.  My mother was washing my jeans in the washing machine. And the air-conditioners were on in both rooms. I was in my room watching TV.
W: What was your father doing then?
M: He wanted to warm his tea in the microwave oven.  He plugged it in and the fuse broke. And everything stopped all of a sudden.
W: Your next-door neighbor is an electrician, isn’ t he?
M: Yes. Luckily, he happened to be at home.  He came and fixed it up. But it was hag an hour later. I had already missed a lot.
W: It was an annoying experience for a sports fan like you. But don’ t miss the basketball final this evening.  Make sure there is no power failure tonight.