句子成份

The world is a greener place than it was 20 years ago.

请问句子成份怎样划分？it was 20 years ago 作什么成分？

The world is greener than 20 years ago. 这个句子对吗？

The world主语 is 系词a greener place表语 than it was 20 years ago比较状语从句修饰greater。

than从句可以省略和主句相同的成分it was.

所以，The world is a greener place than 20 years ago.也是正确的。

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 1秒前

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