题目内容：

A：Hi，Wang Fei.1. Is there anything wrong with you?

B：I failed the maths exam yesterday.

A：2. But you don't need to worry about it all the time.

B：I really don't know how to learn maths well.3.

A：I think you'd better study in a maths group.

B：4. Could I join your group?

A：Of course you can.And we can learn from each other.

B：Sounds great.5.

A：Tomorrow，if you like.

B：It's very kind of you.

A．What seems to be the problem?

B．I'm sorry to hear that.

C．Oh，that's a good idea.

D．What should I do?

E．You look very unhappy.

F．When can I join it?

G．I'm really worried about you.