1、Maths is diffcult to learn.
Maths is hard to learn.
2、I hope that I can go to your party this weekend.
I hope to go to your party this weekend.
3、To take exercise every day is helpful.
To do exercise every day is helpful.
4、When we finish the homework, we rest.
When we finish the homework, we have a rest.
1.uneasy to
2.to go to
3.do exercise
4.had a break
not easy to
exercising
have a break