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【题目】Healthy food and exercise ________ me to keep in good health.

A. helpsB. helpC. helpingD. to help

【答案】B

【解析】

句意:健康的食物和运动有助于我保持健康。

考查主谓一致。helps动词的第三人称单数形式;help动词原形;helping动名词或动名词; to help动词不定式。根据句子的主语Healthy food and exercise可知,此空作谓语,故排除CD;主语是并列连词and连接的两个主语,谓语不能用第三人称单数形式,排除A,故选B

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