见到一个句子: we will go a long way to solving the energy issues

见到一个句子: we will go a long way to solving the energy issues We will go a long way to happiness,until the end of the. will go a long way to I always believe we have a long way to go. the still have a long way to go 这里的way to go怎么理解 We have a long way to go,so we have to walk_____(much）. We must start early,_____ we have a long way to go.A.because in the long go to far way we must start early,____ we have a long way to go we have a long way to go,（） we?括号里添什么? There is a long way to go. A long way to go back