1.bothtomandjimarestudents 改为否定句 (Neither )tom(nor )jim is a student2.when did shebuy thisbook?doyouknow?合为一句
doyouknow-(when _)he( did )-thisbook3.they have finished their work already改为一般问句 (Have )they finishedtheir work-( yet )-?4.xiao wang bought lucy a new booklastweek改为被动语态 a new book...