Machines need _________to work.

Machines need _________to work. He is _________to work by himself. Need to maintain the machines even if the machines stopped As is well known,machines need to lubricate. 三道初一英语改同义句1.Machines can help to do different work.Machines These machines work with the same principle. 是非题 machines will do most o＿ the work machines will do most o＿ the work.填单词 need just work,work has work. skills need some work. You need to work ( ) i need money i need work,too.