—What can I do for you?—I want two .A. bottle of milk B. bottles of milk C. bottles of mi

问题补充：

—What can I do for you?

—I want two .

A. bottle of milk

B. bottles of milk

C. bottles of milks

D. bottle of milks

答案：

A. bottle of milk

(答案→)B. bottles of milk

C. bottles of milks

D. bottle of milks

解析：我能为你做些什么？我想要两瓶牛奶。牛奶是不可数名词，不能加s,但是可以和量词一起组成可数名词的短语形式，故选B.