◎ 题干
The article suggests that when a person _____ under unusual stress he should be especially  careful to have a
well-balanced diet.
[     ]
A. is      
B. be      
C. were        
D. was
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The article suggests that when a person_____ under unusual stress he should be especiallycareful to have a well-balanced diet.[ ]A. is B. beC. were D. was…”主要考查了你对  【一般现在时】【主谓一致】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。