Ann: Why didn't you finish your homework and come to watch TV?
Bill: Because I didn't understand it. It is too difficult.
Ann: Why didn't you ask teacher to explain it?
Bill: Because I don't like him.
Ann: And why don't you like him?
Bill: Well, he always shouting at me.
Ann: Why is he shouting at you?
Bill: Well, I am not doing my homework.
Ann: Well, no wonder he is shouting at you.
Give me your book now. We'll try and do it together.