dialogue: M: Hi, Kate. Can I discuss our class picnic with you? W: Sure. Go ahead. M: Today I think we must decide where and when to have our class activities of having a picnic. Many classmates are asking me about that. W: Ok, first, about the location. How about the Central Park? It is near our campus, and we can just walk there, That saves some time and money. M: Sounds good. Do you think we can go on Saturday? W: Maybe not. Some classmates must attend the training program of our department. Sunday is better. W: Ok. Then I will go to inform the class.
question: When are they going to have the picnic?
choice: On Sunday. On weekends. On Saturday.
answer: On Sunday.