The joke that the river flows eastward.

One day, the geography teacher asked his classmates, "In which direction do most rivers in China flow?" ?

A student said, "The river flows east!"

The teacher ignored him and then said, "How many stars are there in the sky?"

A student said, "The stars in the sky join the Beidou!"

The teacher was angry: "Get out."

Student: "Let's go."

Teacher: "You are sick."

Student: "You have me and all of them."

Teacher: "You can say it again."

Student: "shout when you see an uneven road."

Teacher: "Do you believe I will hit you?"

Student: "Do it when you should."

Teacher: "I told you to quit school."

Student: "Rush into Kyushu"

The teacher fainted.