____ enough,ice can change into water.a,heating b,heated c,being heated d,having heated
问题描述：
____ enough,ice can change into water.a,heating b,heated c,being heated d,having heated
选哪个,为什么?
答
选B,现在分词～ing,过去分词～ed,两者都可做状语,用哪个要看与主语的关系,主语ice应该是被加热,表被动选～ed.冰加热变成水 没必要用完成时,再说用完成时 D 也不对啊,表被动的完成时态的分词形式应该是having been heated. 故D错误