从对话后的方框中选出能填入空白处的最佳选项。 
A: We are going to play basketball. （1）________ 
B: I'd like to, but I can't. 
A: （2）________ 
B: I have to see Xiao Fang in the hospital. 
A: What's the matter with her? （3）________ 
B: （4）_______ 
A: （5）________ 
B: I'm afraid I can't. 

A．Her head hurts and she doesn't want to eat.

B．Would you like to go with us?

C．Anything serious?

D．Are you coming later?

E. What do you have to do?