To work out this maths problem is difficult.(同义句转换) __difficult __ work out this maths problem
问题描述:
To work out this maths problem is difficult.(同义句转换) __difficult __ work out this maths problem
答
It's to
祝进步
答
It's__difficult _to_ work out this maths problem
答
It's to
不定式是真正主语