Kate ______(fly) a kite at this time yesterday.
What ______ your parents ______(do) at nine o'clock yesterday?
The students _______(study) English when I came into the classroom.
My wallet ______(drop) on the ground when I ______(walk) in the street.
Don't worry.Everything _______(go) well.
Listen!I heard someone _______(laugh).
I'd like ________(go) to the party with you.
My father came into my bedroom while I _______(write)a letter.
1.was flying 解析：从“at this time yest.were doing从“at nine o'clock yesterday"看出.were studying从when从句可看出.dropped,was walking drop 是短暂性动词，walk 延续性.goes 注意，Everying goes well.这是一个固定搭配。 楼上说错了.laughinghear sb do/doing.laugh为延续性，“听到时正在大笑”.to gowould like to do9.was writingwhile 后接延续性动词 惯用法“ while sb be doing"
