My husband had just bought a new washing machine for me. I decided to use it the very day and I washed a lot of things. Everything worked well, but I found one of my husband’s socks missing. I looked everywhere for it, but I couldn’t find it anywhere.
The next morning, I got ready for school as usual. When the bell rang, the students came in. I greeted （问候）them and told them what we were going to do that day.
When I turned around to write on the blackboard, the class broke out a roar （大声笑）！
They laughed and laughed. They laughed so much, in fact, that I was afraid the headmaster would be in to see all this, I asked the class to stop, but the more I talked, the more they laughed. I decided to pay no attention to them and I went on writing on the blackboard. When I did this, they roared even more.
Finally, the teacher who had the room next to mine came in to see what all the laughter was about. When he came in, he started laughing, too!
“Good heavens, ”I said, “Will someone please tell me what is so funny?”
“Oh, God, ”said the teacher, “You have a brown sock stuck （粘，贴）to the back of your skirt! ”
So that’s how I found my husband’s missing sock. “Oh, well,”I said to the class, “Let’s just say you have had an unforgettable lesson on static electricity（静电）.”
（ ）1. What was the writer?
A. A washer. B. A student. C. A headmaster. D. A teacher.
（ ）2. What happened when the writer turned around to write on the blackboard?
A. The class roared with anger.
B. The class began to laugh loudly.
C. Another teacher came in.
D. There was a loud noise outside the room.
（ ）3. Why did the teacher from the next room laugh?
A. Because the whole class laugh.
B. Because he saw the writer fooled by the class.
C. Because he found a sock on the back of the writer’s skirt.
D. Because he saw some of the students making faces.
（ ）4. What did the writer do when she got to know why her students laughed?
A. She did nothing but laugh.
B. She explained （解释）the matter in a clever way.
C. She did nothing.
D. She got angry with the class.