Eating vegetables and fruits a good habit.A. areB. isC. is to beD. will be

问题补充：

Eating vegetables and fruits a good habit.

A. are

B. is

C. is to be

D. will be

答案：

A. are

B. is

C. is to be

D. will be

解析：

试题分析: 句意：吃蔬菜和水果是一个好习惯。Eating vegetables and fruits动名词做主语，视为第三人称单数，故答案选B.