A、Two hours. B、Three hours. C、Four hours. D、Five hours. B

M: Excuse me, could you tell me if there’s a gas station near here?
W: You seam to have run out of gas, don’t you? But I’m afraid there isn’t any gas station nearby.
Q: What do we learn from the conversation?

W: When will the plane from Washington arrive in Shanghai? It’s already 4 o’clock.
M: According to the timetable, it’s going to land at the airport at 7 and we have to wait here until then.
Q: How long will they have to wait?