I think take mobile phone to school is useful这个句子有错吗?

分类: 作业答案 • 2021-12-16 18:32:52

问题描述：

I think take mobile phone to school is useful这个句子有错吗?
据说是is useful用错了,

答

take改成taking
或者I think it useful taking mobile phone to school
I think it useful to take mobile phone to school .