如:To play basketball and to go swimming _____ useful for character-training.
A. is B. are
请详细说明解释,谢谢,急!!!!!!!!!!!!!!!!!!!!!!!!!
參考答案:B
用and连接的成分表单一概念时谓语动词用单数;就近原则;主语中含有某些连词(如as well as,besides,in addition to等)时,谓语动词的数同第一个主语保持一致。
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如:To play basketball and to go swimming _____ useful for character-training.
A. is B. are
请详细说明解释,谢谢,急!!!!!!!!!!!!!!!!!!!!!!!!!
參考答案:B
用and连接的成分表单一概念时谓语动词用单数;就近原则;主语中含有某些连词(如as well as,besides,in addition to等)时,谓语动词的数同第一个主语保持一致。