What are the rules at your school—Don’t run in the hallways and arrive late for class.

The theory was attacked when it was first , but gradually it was accepted.

eople go to the theatre not to see a play ______plot is complicated, but to listen to brilliant dialogues between actors

Success in life doesn’t happen . It’s the result of devoting your time and energy to what you’ve set out to do.

In the last ten years, they _______ three great scientific experiments.