what do we use the computer( )介词

what do we use the computer( )介词 We use resources to the full,waste nothing and do only what we can do best. What do you use the pencil-box ()?We use it () keep pencils and rulers. What we must do is reduce the use of the energy这句话有错吗 We use resources to the full,waste nothing and do only what we can do best.怎么翻译, 翻译：我们用电脑干什么?What do we use the computer______? what we can do to cut down the use of energy?什么意思 what do we use water to do同义句 what shall we do if we use up the energy in the world的同义句what ------- the energy in the world -------- -------? （ ）what can we use a ladder______?A.to doing B.for C.do D.for to do What do you use the computer for?同义句What do you use the computer____　____? what do we use water for 是否还要加doingwhat do we use water for or:what do we use water for doing for,use,we,what,glass,do 连词成句 what often use water for do we连词成句 英语翻译What sports do we use this equipment for? What do we use these.for We use it for.造个句子是句型 What do we use water to do?这个句子中use是什么词性? What are you going to do _____ the money?A byB with C inD use