He was doing his homework yesterday afternoon改为否定陈述句急

He was doing his homework yesterday afternoon 改为否定陈述句 He was doing his homework yesterday afternoon改为否定陈述句急 he was doing his homework yesterday afernoon改为否定 He finished his homework yesterday afternoon （改为否定句） He was doing his homework when his father came yesterday 这里的 He was doing his homework when his father came yesterday 可不可 He was doing hie homework when his father came yesterday was 改被动语态He was doing his homework at this time yesterday . He did his homework at home yesterday.(改为否定句） He has finished doing his homework.（变为否定句）急! yesterday he stayed up all night____ doing his homework the boy did his homework yesterday改为否定句