UNIT9 was is的过去式 did do的过去式 went go的过去式 visit 拜访 test 测验 What about...……怎么样?stay 停留 at home 在家 have 做 do some reading阅读 practice 练习 regular 正常的 verb 动词 irregular 不... UNIT9 was is的过去式 did do的过去式 went go的过去式 visit 拜访 test 测验 What about...……怎么样?stay 停留 at home 在家 have 做 do some reading阅读 practice 练习 regular 正常的 verb 动词 irregular 不...