题目内容
18.My brother is a student.He usually __________ his homework in the evening.( )A. | do | B. | does | C. | did |
分析 我弟弟是一个学生,他通常在晚上做作业.
解答 B 主语是he,所以后面的动词要用第三人称单数形式,再结合第二个句子中的"usually"可知要用一般现在时,一般现在时表示现在经常性或者习惯性的动作.也就是在do的后面加es,故选B.
点评 句子的主语决定后面的动词形式,如果主语是第三人称,谓语动词就要根据主语做出相应的变化
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