听一段材料，完成对话1-4小题。
1. What are they talking about?
A. A picnic.
B. Healthy food.
C. Drinks.
2. What's the woman's favorite drink?
A. Orange juice.
B. Cola.
C. Soda.
3. What else do they need?
A. Crisps.
B. Bread.
C. Fruit.
4. What are they doing while talking?
A. They are having supper.
B. They are drinking orange juice.
C. They are getting things ready.
