Mary’s ruler is much longer than [mine]. 括号中为什么用mine. 请解析.

Mary’s ruler is much longer than [mine]. 括号中为什么用mine. 请解析. is ben’s ruler longer than mine 比较级 做什么句子成分 Mary's ruler is much longer than mine.请问is后面一块做什 Mary 's hair is longer than mine(改为同义句) 1、Mike is heavier than me 2、Mike's ruler is longer than mine pencil,is ,than,longer,mine,tom's[.] 【组句】 His jeans is longer than mine(改错) Your hair is longer than mine 这个Ben 's penul is longer than mine中文是什么啊? mary's ruler is much longer than______ A.are all B.are both It's mine 后面为什么用mine rule his longer than mine is .连词成句