【正文】
I h a v e n ’ t d o n e m y h o m e w o rk y e t .我還沒(méi)有做作業(yè)。 ( 1 )一般過(guò)去時(shí)表示過(guò)去某時(shí)發(fā)生的動(dòng)作或單純敘述過(guò)去的事情 。例如 : I saw this film 。 ( 2 ) 一般過(guò)去時(shí)常與表示具體的過(guò)去時(shí)間的狀語(yǔ) ( 如 yesterday,last week,three days ago,in 1990等 )連用 。例如 : Tom wrote a letter to his parents last 。 Ⅰ .根據(jù)句意用所給詞的適當(dāng)形式填空 have already had had it at 11:30.( have ) 2.— Have you written to your parents yet? —Yes,I wrote to them last night.( write ) 3.—How clean the classroom is! —Yes,I’m sure that someone has cleaned ( clean ) it. started ( start ) to write the letter yesterday,but he h