是Is Tom going to do his homework?还是 Is Tom going to does his homework?
问题描述：
是Is Tom going to do his homework?还是 Is Tom going to does his homework?
答
Is Tom going to do his homework? be gonging to do 固定用法 打算做某事
答
be going to do sth.
此处do同指动词原形，并不因主语变化而变化，例：
Tom is going to play basketball.
答
是Is Tom going to do his homework?
分析 be going to do sth 固定用法‘ 打算做某事’
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答
to do吧