4 Choose the correct answer. 1 How about joining a conservation group? a That's a good idea. b That's not right. 2 What about making a vase out of this jar? a That's right! b Good thinking! 3 Can you help me? a Yes, I agree. b Certainly! 4 Let's drive to the gym today. a Certainly not! b That's right. 5 Thanks for coming with me. a I don't think so. b No problem!