you are late again.why( )you come early?A.didin't you为什么不行?为什么要用B.not?

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you are late again.why( )you come early?A.didin't you为什么不行?为什么要用B.not?
you are late again.why( )you come early?A.didin't you为什么不行?为什么要用B.not?

you are late again.why( )you come early?A.didin't you为什么不行?为什么要用B.not?
前后时态一致,why don't you或why not you和前面are一致,主要强调说话人现在的状态