"If you work hard, your exam score will (加倍)," the teacher said to Jim.
When you are tired, you can go to a (令人放松的) place to have a rest.
Every autumn, the (落下的) leaves make our school more beautiful.
To be safe,students should (避免) going out alone at night.
At the age of (四十), the writer finished his fifth novel.
You should (道歉) to her for your mistake.