she has aheadache.为什么用has,不是用have.而no,she doesn‘t have an ea

starsys2022-10-04 11:39:543条回答

she has aheadache.为什么用has,不是用have.而no,she doesn‘t have an earache用have是不是has用于肯定
have用于否定和疑问

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宇vs鼎 共回答了25个问题 | 采纳率92%
当时态是现在时态,主语又是第三人称单数的肯定句时用has.后面的否定句中,因为doesn't这个词已经体现了时态和人称的单复数,所以要用原型have.
1年前
xp7720 共回答了841个问题 | 采纳率
she为三人称的单数,用has,像I,you,they就用have,she/he/it就用has,短语don't do sth
1年前
guweidg 共回答了606个问题 | 采纳率
主语是第三人称单数:have(有)用has; 否定句用doesn't+动词原形
have是动词原形,根据人称、时态的不同,其变化形式为have,has, had
1年前

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在这种句型中,不论是问is she well还是isn't she well,回答都要依照事实来说,即不管前面是用is还是isn't,只要well就回答yes she is,而不well就回答NO shi isn't.
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