题目内容
More than one example _______ necessary to make the students understand this rule clearly.
A. should be B. is C. are D. have been
B
many a(许多) + 单数可数名词或more than one(不止一个) + 单数可数名词作主语时,常遵循“语法一致”的原则,即主语是单数,谓语也用单数。
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