You should look left and right when you go ________ the road.
Can I borrow some books _____ you?
—What do you do _____ the Dragon Boat Festival?—We usually have a dragon boat race and have some rice dumplings.
—_____ are in the same class. —Yes, ____ should help each other.
It takes ____ forty minutes _____ this English class.
—There is a desk ___ the hall. —Yes. And there is a tree ___ the hall.