He was ___a plane at this time yesterday

He was ___a plane at this time yesterday he was -------at this time yesterday He was riding a bike at this time yesterday. Jim was ___ at this time yesterday. what-he-(do)at this time yesterday 改被动语态He was doing his homework at this time yesterday . He was reading a book at this time yesterday.改为被动语态 She was washing some clothes at this time yesterday. Lana was doing homework p____ at home this time yesterday We at this time yesterday The plane was _______ at nine this morning ,but there was he at this time yesterday与this time yesterday的区别