April Fools' Day is a day to play jokes on others, but no one knows when such a custom first ______.
You will ______ sooner or later if you keep working like that.
In the USA, the students who study business is more than _______ those who study agriculture.
—— Ann is in hospital. ____ Oh ,really? I ______ know. I ______ go and visit her.
-I thought I’d try to repair the car myself. -______ ! You know nothing about the car.
Who is ______ to be the best football player this year still depends