问题
选择题
It’s good __________ your health_________.
A．for, to drink milk
B．for, to drink a milk
C．of , drink milk
D．of , to drink milk
答案
答案：A
题目分析：句意：喝牛奶对你的健康有好处。be good for 对……有好处。it是形式主语，to drink milk作真正的主语。milk是不可数名词，不能用不定冠词a来修饰。
故选A。