A、Last year. B、This year. C、In December. D、Three years ago. B

W: How do you like your new tenant who moved to your apartment last Monday?
M: Well, she is a nice lady, though I’m having a hard time getting used to her.
Q: What’s the man’s problem?

M: You’ve been here for three years. Have you had much of a chance to travel?
W: Not much. Last year I planned to go to Yellow Stone Park in December, but I had to postpone the trip. Then a few months later, I finally made it there.
Q: When did the woman go to Yellow Stone Park?