谁把墨水倒在我椅子了？
Tom is seven. He goes to school every day. The school is near his home, so he goes there on foot and comes back home(回家) on time. But today he is late. His mother asks him, “Why are you late today?” “I am in the teacher’s office.” “Why do you go to the teacher’s office?” “Because my teacher asks us a question in the class. No one can answer(回答) it, but I can.” “It’s good to answer the teacher’s question.” “But the question is, Who puts ink on my chair?”