补全对话 阅读对话，从四个选项中，选出一个最佳答案完成对话。
A : Hello, may I speak to Ann, please?
B : Hello.           Is that Mary?
A: Yes. I hear you weren't well yesterday.          
B:I fell off the bike and hurt myself.
A:        
B: Much better. Thanks. Maybe I can go to school tomorrow.
A: Oh, I think you should stay in bed and have a rest.
B : Maybe you're right.        
A: Don't worry. I can help you.
B: It's very kind of you.        
A : It's my pleasure.

A．That sounds boring.

B．It's a blue one.

C．This is Ann speaking.

D．Is this enough?

A．I need to buy some drinks and snacks.

B．I don't think so.

C．I'd like to go to school.

D．What was the matter?

A．See you tomorrow.

B．I need to get there on time.

C．Are you better now?

D．Open the door.

A．It must be David's.

B．How do you do?

C．What color is it?

D．But I'm worried about my lessons.

A．I don't know

B．Thanks a lot.

C．Here you are.

D．Where's my homework?