四年级下册外研版英语《Module7 Unit1 I helped Mum》ppt课件
四年级下册外研版英语《Module7 Unit1 I helped Mum》ppt课件第4页

Yesterday yesterday 是昨天,昨天请用(现在时 过去时),动词请用(过去式 -ing形式)。

说出下列动词过去式: is- am- are-

was

was

were