I think it our duty to study.I think it completeI think it our duty to study.I think it complete waste of money.为什么第一句是对的,第二句却是错的呢?

分类: 作业答案 • 2021-12-28 11:27:18

问题描述：

I think it our duty to study.I think it complete
I think it our duty to study.
I think it complete waste of money.
为什么第一句是对的,第二句却是错的呢?

答