1.no matter what you do,___(一旦开始),you must continue.
问题描述：
1.no matter what you do,___(一旦开始),you must continue.
2.only by knowing yourself ___(你才能希望) to become an effective leader.
3.the people in Libya have gone through so many wars and they dream of ___(过和平的生活)
答
1)once you begin
2)can you hope/wish only+状语放句首倒装
3)leading/having a peaceful life