补全对话。根据对话内容，在每个标有题号的空白处填人一个适当的句子，使对话完整。(共5小题；每小题2分，满分l0分)

A: What can I do for you ?

B：I want to buy a pair of shoes.

A:    小题1:            

B: Size eight or nine .

A: Ok ! How about this pair ?

B: Sorry , I do not like black. 小题2:     

A: Yes.We have blue ,white and brown ones .

B: Can I have a look at the brown ones ？

A: Yes ,please.                 

B:  小题3:      

A:Forty—six yuan.        

B: It is too expensive .   小题4:    

A: How about forty ?    

B: It is still expensive . What about thirty-five ?

A: All right.

B:OK.     小题5:      

下列哪些属于症状( )

A．皮疹

B．心脏杂音

C．头痛

D．脾肿大

E．腹水