She doesn't studies at this school.改错.what do your grandfather do every day?
问题描述：
She doesn't studies at this school.改错.what do your grandfather do every day?
答
studies 改为 study ( 既然借助了助动词后面就接动词原形）
do 改为does（你的奶奶是一个单数，则要借助does）
答
She doesn't study at this school.
What does your grandfather do every day?
答
1.studies改为study (does已经体现三单,studies要还原为原形）
2.do改为does（your grandfather 体现三单,故用助动词does)
答
1 studies -> study ( doesn't 后接动词原形）
2 第一个DO 改为does ，因为主语YOUR GRANDFATHER是三单。
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