when____ ,ice changes into water 为什么填heated 而不是be heated 不是被加热吗?

when____ ,ice changes into water 为什么填heated 而不是be heated 不是被加热吗? they can change water into ice怎么改为被动句? ICE ice ice Ice Ice ____enough,ice can change into water 中 为何不用being done____enough,ice can change into water 中为何不用being done 为何“being done不能用来做状语? Do you know when____(meet)? When____ you ____(do)it? 英语根据首字母提示填空：Water will change into ice when the t__ is low enough. dev ice configuration change a:dr ive error keyboard not found change change change, change change change