从方框内所给的选项中选择恰当的句子补全对话（其中有两项多余）。

A. What are you doing?                

B. How about some apples?

C. What do you want?                  

D. Two, please.

E. Can I help you?                    

F. How much are they?

G. What about you?

Man: 1._____________

Girl: Yes, please.

Man: 2._____________

Girl: I want some oranges.

Man: Sorry. We don't have any oranges today. 3.______________

Girl: OK.

How many apples do you want?

Girl: 4._____________

Man: Here you are.

Girl: Thanks. 5.______________

Man: Four yuan.  

Girl: Here is the money. Thank you.

Man: You're welcome.

视网膜母细胞瘤的首选检查方法是（）

A.B超

B.CT

C.MRI

D.平片

E.眼底荧光摄影