--Excuse me, can I have this seat, please?--I’m sorry, but it’s_______.
Do you want to be healthy? ______. Smiling can help you stay healthy.
---George, how can you prove the earth is round? ---I can’t, sir. ______, I never said it was.
A friend is someone ______ says, “What! You too? I thought I was the only one!”
He thinks himself somebody, but we think him ______.
______ a light when necessary. You will bring light to other people and yourself.