从方框内选择最佳选项，并把字母序号写在对话后面的空格内。
（方框中有两个选项与对话内容无关）

A: Can I help you?     B: What kind of noodles would you like? C: We have small, medium and large.   D: And what size would you like? E: I’d like mutton and potato noodles, please.

A: ___66____.
B: I’d like some noodles, please.
A: ____67___
B: What kind of noodles do you have?
A: We have beef, chicken, mutton, cabbage, potato , tomato….
B: Ok, ___68___
A: Sure. ____69____
B: What sizes do you have?
A: ____70___
B:  Oh, a medium bowl, please.