通读下面的对话，然后根据上下文补全对话内容。

A: Hi, David! 1                               ? 

B: Hi, Sarah! I am going to see Anna. She is in hospital.

A: 2                              ? 

B: She had a traffic accident on her way to school and was hurt.

A: 3                              . Is there anything serious?

B: Yes, there is something wrong with her head.

A: Oh, my God! 4                                . 

B: I hope so, too.

A: 5                              ? 

B: Sure. Let's go!