改错句,Mary and Tom are all here.请问哪里错?

改错句,Mary and Tom are all here.请问哪里错? Mary and Tom are in (同一个班) AND,THESE,ARE,TWO,FRIEND,MARY,TOM,HER 如何连词成句? this are jeff and tom改错 Mary.and.Tom.are in.Mary.and.Tom.are in.同一个班 Both Mary and Tom are students.（改为同义句）（ ）（ ）Tom（ ）（ ）is a student. Helen and her sister are in Tom'party.这句英语哪里错了,请改错. Tom和Mary是兄妹Tom and Mary are ____ ____ ____.试题 英语简单改同义句,Tom is as old as Mary.Tom and Mary were born________. tom and mary 歌词 Tom and Mary are __.A.English B.Englishs Tom and Mary are doing the sports.变一般疑问句 mary and tom are talking with the phone语法错误 Tom and Mary are in a new f_____ classroom 这句英语里用is还是are?Tom's ,Mary's and Bob's birthday is in May.还是应该是Tom's ,Mary's and Bob's birthday are in May. _____school bags are on the desk .A.Mary and Tom's B.Mary's and Tom's C.Mary's and Tom none of Mary,Betty or Tom are students 还是none of Mary,Betty and Tom are students怎么用 Let us are good friends,Tom and Jack改错