4 ** Complete the dialogue. Use: could, wrong, help, problem, disagree, idea, about, right. Two words don't match any gaps. A: Can you 1) .... me think of ways to save energy at home? ? B: Well, how 2) ...... ...... using fluorescent light bulbs? A: Good thinking! We 3) ...... also take baths instead of showers. B: That's a terrible 4) ......... ...! We should take showers instead of baths. Doing that saves energy. A: Hmm, maybe you're 5) ....... Thanks for your advice. B: No 6) ......