"What do you need help with"中为什么没加to?

"What do you need help with"中为什么没加to? what do you need help we need her to help with music 这里为什么加to 英语中什么时候要 What ()do you need to take with you what can i help you with?为什么要加with? what can you do to help doing with enironment pollution what do you need take with what do you want to invent to help those who need food? 翻译：What do you want to invent to help those who need food? what do you want to invent to help those who need food的回答,不是 What do you want to invent to help those who need food?翻译 为什么We can do what we can to help you .