阅读理解
A: Do you have new teachers, Tom?
B: Yes.
A: Who are they?
B: Mr. Lin and Mr. Sun.
A: Are they young?
B: Mr. Lin is young, but Mr. Sun isn't.
A: Is Mr. Lin a university student?
B: Yes, he's very funny.
A: Is Mr. Sun strict?
B: Yes, but we all like him.
