the computer have_____us to work more efficiently since many years ago.(able)
问题描述：
the computer have_____us to work more efficiently since many years ago.(able)
答
enabled
enable sb to do sth 使（某人）能做某事
这是完成时态,所以用过去分词Unluckily,Darid did ____ in the relay race.(badly)badly
形式不变， 因为是状语， 用副词