i don't know what it takes to get it done

i don't know what it takes to get it done i don't want to know what it's been. i want to know what it 找错----Sorry,I don't know what to do it 改错：I don't know what to do it. I don't know what is it 和 I don't know what it is I don't know "What to do 和 I don't know "How to do it"?哪个句子是 英语翻译-I don't know.If it was hard to get in even my finger... I don't know what to do.为什么不是I don't know what to be done.请高 I don't know what to do 能否说成 I don't know what to be done. I don't know ( ).A.what to do it B.how to do it C.what to do i don't know how to do it.为何要加It?而what to do 后则不加it? i don't know it