when he got back he d----- that someone had taken his suitcase by m----.完形填空
问题描述：
when he got back he d----- that someone had taken his suitcase by m----.完形填空
答
discovered,发现
mistake,by mistake,固定搭配,错误的that little tool makesusing computer so e----.easily为啥不是easyuse computer so easily,easily 这个副词是修饰动词 use的哦some computer users have started c---- it a cat请先采纳，如有问题可再向我求助。