If you want to keep fit,you should eat —— fresh fruit and vegetables.

问题描述:

If you want to keep fit,you should eat —— fresh fruit and vegetables.
A.a lot B.plenty of C.much D.many
说明原因.

选择B.
A中的话,a lot of +物品 ,a lot 则只能够有修饰的作用.
B以为足够的,符合题目.
C中若用much则要修饰不可数名词.
D中若用many则要修饰可数名词.