题目内容
17.He _______ breakfast at home.( )| A. | hasn't | B. | haven't | C. | doesn't have | D. | don't have |
分析 他没有在家吃早饭.
解答 答案:C.
结合句意表达的是客观事实用一般现在时,have表示吃,主语是he,借助于does构成否定,后加原形have,故答案是C.
点评 "三单"即,第三人称单数,是指he she it
当句子的主语是这三个单词中的任何一个,或是单独的第三人称,如人名Mike 等,其相对应的位于动词后面要有相应的变化,如加s 或es 等.
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