It is meaningful for us students to do some voluntary work同义句It is meaningful —— —— students do some voluntary work.
问题描述：
It is meaningful for us students to do some voluntary work同义句
It is meaningful —— —— students do some voluntary work.
答
Students to do some volunteer work is meaningful
答
It is meaningful 【to let】 students do some voluntary work.
解析
原句意思是学生做一点义务劳动是对于我们是有意义的。
那么改写的话，又要不改变意思，只有2个空格，又要体现我们，只有to let
改写后的意思是让学生做一点义务劳动是有意义的。虽然没有出现我们，但是是我们让学生做。
答
It is meaningful for us students to do some voluntary work.
=It is meaningful 【that we 】 students do some voluntary work.
答
要求改错 应该是our students