问题
选择题
Eating vegetables and fruits _________ a good habit.
A．are
B．is
C．is to be
D．will be
答案
B
题目分析: 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.
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Eating vegetables and fruits _________ a good habit.
A．are
B．is
C．is to be
D．will be
B
题目分析: 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.