小学六年级上学习练习卷和词语积累和句子练习语数英科均可!_百度知 ...答:2.时间状语:ago, yesterday, the day before yesterday, last week, last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc. 3.基本结构:be动词;行为动词 的过去式 4.否定形式:主语+was/were +not+其他;在行为动词前加didn't,同...