Can I say,<br/><br/>(a) They are drinking a box of milk.<br/><br/>(b) The baby has feet.<br/><br/>(c) She is the best swimmer in her school.<br/><br/>(d) Mrs Lee's box is small but heavy. <br/><br/>(e) The house is expensive.<br/><br/>(f) The room is messy / The room is in a mess.