怎样改成被动语态?People say a horse can live longer than an elephant

An elephant is _____ than a horse. An elephant is ( )(big) than a horse. An elephant is 什么than a horse in its size An elephant is 什么than a horse in its length An elephant is (very) heavier than a horse. 1:An elephant is much bigger than a horse 2:The elephant is an elephant is ( ) bigger than a horse A a lot B more C much ----elephant is mush stronger than----horse.正确答案是An,a 为什么不能是 用形容词的适当形式填空.An elephant is ()(big)than a horse. People say that“an elephant never forgets” how long can an elephant live.翻译 怎样将主动语态改成被动语态