Why does the author think some people should say “sorry” to Peter?
A、They refused to help him.
B、They considered him hopeless.
C、They looked down on his parents.
D、They made him give up his friends.
P: No, not very serious, but the doctor told me to stay in bed and have a good rest. S: I see. I’ll _____55_____ as soon as he came back. P: Thank you. Goodbye! S: Bye!