One of the main reasons is that he was very hard.这句话有错吗?

分类: 作业答案 • 2021-12-31 12:48:48

问题描述：

答

is 和 that 语法不统一.怎么改都用is 或者 was帮我发完整的句子，谢谢One of the main reasons is that he is very hard.