English grammar is so simple that you can learn it after listening to a few jokes, and then

One day the teacher asked Xiao Ming: 1+ 1=? Xiao Ming: I don't understand. Teacher: Go home and ask mom. Xiao Ming asked his mother: Mom 1+ 1=? Mom plays mahjong: two-way! Xiao Ming asked his father: Dad 1+ 1=? Dad takes a bath: That's cool! Xiao Ming asked his brother: Brother 1+ 1=? Brother watching the ball game: OK! Anke! Xiao Ming asked his sister: Sister 1+ 1=? Sister calls her boyfriend: Dear, I'll wait for you ~ The next day, the teacher asked: Xiaoming 1+ 1=? Xiaoming: Er Tong! The teacher slapped Xiao Ming. Xiaoming: How cool! The teacher slapped Xiaoming again. Xiao Ming: OK! Anke! The teacher kicked Xiaoming downstairs. Xiao Ming said before he died: Dear, I waited for you ~ The teacher went into shock and died.