I. EXAMPLES: Be careful with the wet paint. Be careful that you don’t catch a cold. Put on more clothes before you go out. Be careful not to spill the milk. II. DIALOGUES: A: She has been calling me for several days now. I think she’s interested in me. B: Are you sure? I think she already has a boyfriend. A: How do you know? B: A friend of hers told me. I’d be careful if I were you. A: Why? B: Because I heard her boyfriend is a weightlifter. A: Wow! You’re right. I guess I better not call her.
