A、$19. B、$11. C、$15. D、$14. B本题的问题关键词是how much。要求学生做个简单的减法。对话中提到今年$15，比去年贵了$4，所以去年为$11，因此选B。

M: We are both free this afternoon. Shall we go surfing?
W: Go surfing? I’ve never surfed before, but it sounds really cool. What time shall we meet?
M: Let’s make it half past three.
Q: Are they going surfing this afternoon?

M: Coffee is 15 dollars a pound. The price has increased.
W: Yes, it’s 4 dollars higher than last year.
Q: How much did a pound of coffee cost last year?