Вот правильные сопоставления:
1. Why don't we go shopping? - A. Brilliant idea! They have a new film.
2. Shall we go to the cinema? - B. That sounds good. I need some exercise.
3. How about visiting Dave? - C. OK. Let's look for a new shirt.
4. Why don't we go to the gym? - D. I don't really like eating outdoor.
5. How about having a picnic? - E. I'd rather not. I don't like him.