"how to do the next"和"what to do next"这两句句子对吗?

"how to do the next"和"what to do next"这两句句子对吗? how to do it next还是what to do next what to do next 还是 what to do the next Please show me ____(有理由） what to do the next how to do next What to do next? what the person next to you do Please show me ____ (有理由） A.what to do the next B.how to do i don"t know what to do (next) 和i don"t know how to do (next i don't know how to do next还是what to do next He doesn't know next 1how to do 2what to do next 3how to do what do you plan to do during the next vacation? I wonder ( )to do next 填how 还是what