Why are you always so slow?这里为什么不用slowly?

Why are you always so slow?这里为什么不用slowly? Why you always speak so slowly 这句话中的slow为什么不用slowly? why are you always thinking of yourself?这里不是有always为什么think后 He asked why you are so happy?为什么这里的的ARE 时态不变呢 Tom runs fast but I run slowly.最后一个单词为什么用slowly而不用slow? why are you 为什么还要 so diao why are you so be quick!you are too-----(slow/slow)\ 为什么? why are you always so rude to your parents?can't you be __ t why are you so serious? why you are so diao?