---Why do you keep the windows open on such a cold day? ---There are so many students here, so we want to keep the air nice and __.

---Many people eat    meat than they did before. ---Yes, that’ s why they’ m getting falter and fatter.

I am so _____ when I heard the ________ news.

---Sorry, Ted, I can’t come to your party. --- That’s too bad. Maybe _____ time.

I can __________ be a doctor. I don’t have enough patience at all.