Tom is the tallest of his three brothers 这句话是错的 为什么不能加his?

Tom is the tallest of his three brothers 这句话是错的 为什么不能加his? jim is tallest of the three brothers.保持原句意思 jim is than his It is said that Tom is the tallest of ____.A．his brothers B． Tom is the tallest of the three brothers.和Tom is the tallest Tom is the tallest in his class.改为同义句. Tom is the tallest student in his class.同义句 Tom is the tallest boy in his class Tom is the tallest student in his class 同义句 Tom is the tallest in his class同义句 TOM,(as well as)his two brothers,is fond of playing foot.为什么 Tom is the shortest of his three brothes.这句中哪里错了,请改正 Bob is the tallest boy ---of-- his class 为什么用of而不用in