2.Someone says,"Time is money,"but I think time is even(76)more important(important)than money.Why?Because when money is spent,we can get it back.However,when time is(77)gone(go),it will never(78)return/come back/be back(回來).That's why we mustn't waste time.It goes without(79)saying(say) that the time is usually limited(有限的).Even a second is very important.We should make full use of our time to do something(80)useful(有用的).But it is a pity that there are a lot of people who(81)don't know(not know) the importance of time.They spent their limited time smoking,drinking and(82)playing(play).They can't understand that wasting time means wasting part of their own(83)lives(生命).In a word,we should save time.We shouldn't(84)leave (留下) today's work for tomorrow.Remember we have no time(85)to lose(lose).