放学后你能帮我打扫教室卫生吗?
Could you please help me to the classroom after school?
Don't be (害怕) of making mistakes in life,because you can improve yourself by correcting them.
It's very helpful to (讨论) your problems with your parents.
Believing in yourself is the first step on the road to (成功).
Mike is so smart that he can answer these questions (容易地).
Look!The (树叶) on the trees are in different shapes!