Good-bye and good luck ________ you.

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A: Good afternoon, Doctor Huang.
B: Good afternoon, young man.     56   
A: I have a bad cold. I cough now and then.         
B:     57   
A: For two days. And I’m feeling terrible now.
B:     58   Oh, you have a fever, too.
A: Is it serious?
B:     59     You just need some medicine.
A: How often should I take the medicine?  
B: Three times a day.     60   
A: Thanks a lot. Bye!

A: Good afternoon, Doctor Huang.

B: Good afternoon, young man.     56   

A: I have a bad cold. I cough now and then.         

B:     57   

A: For two days. And I’m feeling terrible now.

B:     58    Oh, you have a fever, too.

A: Is it serious?

B:     59      You just need some medicine.

A: How often should I take the medicine?  

B: Three times a day.     60   

A: Thanks a lot. Bye!