Wang Hua is a twenty-year-old young man. Two years ago, he finished middle school and found a job in a shop. Usually he works until 9 o'clock at night. He is very tired when he gets home. After a quick supper, he always goes to bed quietly. His grandma who lives downstairs is happy with this.
One day, on his way home, he happened to meet Zhou Weilun. They were both happy because they hadn't seen each other since graduation. They talked about their school, teachers, classmates and their future. They couldn't stop and went to Wang Hua's house together with some fruit and drinks. They went on talking there.
"Have a look at your watch, Wang Hua. I left mine at home," Zhou Weilun said. "What time is it? Maybe I should go home."
"Sorry, but there is something wrong with my watch," said Wang Hua.
Wang Hua thought for a while and began to stamp (跺) his foot on the floor. "Bang! Bang! Bang!"
The sound woke up his grandma. The old woman shouted, "It's twelve o'clock at night, Wang Hua. Why are you still jumping upstairs?"
