A. OK. Here you are.B. That's OK.C. Let's.039. ( C ) Have a...
( C ) Must I finish my homework now?A. No, you mustn't.B. No, you can't.C. No, you needn't.042. ( A ) What must we do in the classroom?A. Shout.B. Keep it clean.C. Look outside.043. ( A ) How do you come to school?A. I take a bus.B. He rides a ...