A、On June 2. B、On July 5. C、On July 2. D、On May 1. C对话中，男士问女士什么时候出发，女士回答到7月2号，故答案为C。

M: Hello, Alice. The summer vacation is coming. Do you have any plans?
W: Yes. My family are planning to visit Beijing this summer vacation.
M: Where are you going to visit?
W: We’re going to visit the Great Wall and the Forbidden City.
M: Why don’t you go to the Beihai Park? It’s quite beautiful. It’s one of the oldest and largest gardens in China.
W: Sounds good.
M: When will you leave and how will you get there?
W: We will leave on July 2 and we will go by plane.
M: I hope you will have a good time there.
W: Thank you.
17. What is the woman going to do this summer vacation?
18. Where does the man suggest the woman to visit?
19. When will the woman leave?