she buys three bags and each bag is five hundred thousand dong --> ko có gợi ý câu khó
2 câu trả lời
->The price of each bag is five hundred thousand dong and she bought three
`1` Three bags are bought and each bag is five hundred thousand dong.
`=>` Câu bị động hiện tại đơn
`(+)` S `+` am / is / are `+` Vpp
`(-)` S `+` am / is / are `+` not `+` Vpp
`(?)` Am / is / are `+` S `+` Vpp?
`-` Three bags số nhiều nên `+` are
buy `->` bought `->` bought
