_____(who) school bag is heavier

_____(who) school bag is heavier 英语：Whose bag is heavier,_____ Who's school bag is heavier,yours or mine?哪错了? 为什么 Whose school bag is heavier,yours or mine?school bag 后面是 仿照Whose school bag is heavier,yours or mine?Your is,I think造 who are faster than the boys这句话对吗 Your bag is heavier than m 英语翻译连词成句bag heavier school my yours is than(.)Tom tallest th is your school bag heavier than (my mine) the litter boy can Yang Ling's school bag is heavier than mine.划线部分提问,划线部分为Yang My bag is heavier than your bag同义句转换 who is heavier than whom什么意思 My school bag is