posted by John .
A: How's your new math teacher?
B: He is a nice and funny teacher.
A: Really? That's great.
B: Yes, I like him.
A: Does he give you homework?
B: Yes, he gives a lot of homework to us, so I have no time to play.
A: That's too bad.
(Would you check the dialogue, pleasse? Thank you? Are the expressions all grammatical?)
Yes, they are grammatical.