Having been used for a long time,the computer needs repairing.
问题描述:
Having been used for a long time,the computer needs repairing.
1 Having been used for a long time,the computer
needs repairing.
2 To have been used for a long time,the computer
needs repairing.
3 Used for a long time,the computer
needs repairing.
三个哪个是对的?why
答
第一个,原因两点:1 被动 2明显的完成意,对现在造成影响(看后边)2不也是不定式的被动完成式么?为什么这里只能用现在分词的被动完成式?不定式表“去做,未作”........ 还没用就需要修了?啥电脑......