语法练习过去进行时.when he came in ,his parents____watching TV.when t

语法练习过去进行时.
when he came in ,his parents____watching TV.
when the UFO arrived,we__in the classroom
there____a pen,two rulesand some paper on the table.
yesterday,i saw there___still some ink in the bottle
there__few eggs left in the bsket
用BE 的适当形式填空

1.were 过去具体的时间点,用过去进行时.
2.were 过去式,表当时正在教室里.
3.is there be 句型谓语看紧跟其后的名词的单复数.
4.was 前后时态一致,这个题ls的ls错了.
5.are eggs是复数 left作后置定语,不需要做成过去式.