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---Whorunsfastestinyourclass?---(Tomdoes)为什么是Tomdoes?Tomis行不行?Youusuallyhavesupperatschool,(don'tyou)?为什么是don'tyou?haven'tyou行不行?Sheepliveongrass,(don'tthey)?为什么是don'tthey?dothey咋不行?

题目详情
---Who runs fastest in your class?
---(Tom does)
为什么是Tom does?Tom is行不行?
You usually have supper at school,(don't you)?
为什么是don't you?
haven't you行不行?
Sheep live on grass,(don't they)?
为什么是don't they?do they咋不行?
▼优质解答
答案和解析
1.run是动词,要用助动词does.
2.这里是一般现在时态,而不是现在完成时,所以用don't.(注意:句子中的have实意动词)
3.前面是live,肯定的,后面当然用否定的don't了.