A、Comedies. B、Horror films. C、Mystery films. D、Crime films. C当男士表示自己喜欢“mystery films”并问女士是否喜欢时，她的回答是肯定的，故选C。

M: Do you feel like going to the cinema?
W: Oh, yes. What kind of films do you like?
M: Well, I like all sorts of films, but my favorite sorts are those like Star Wars. You know, the fantasy, special effect ones that you can escape into another world.(17)I also like mystery films, do you like mystery films?
W: (17)Yes, but I don’t like horror films because they really give me nightmares.
M: (18)I don’t like horror films either. They’re sort of stupid and unbelievable. I do like crime films, you know, where you can follow the detective and try to guess who the murderer is.
W: What about a comedy or musical?
M: No, I’m not interested.
W: (19)What about ringing up the ABC and find out what’s on? Then we can decide.
M: (19)Ok. That’s definitely the best thing we ought to do because I haven’t got an evening paper.
Q17: What films do both the man and the woman like?
Q18: What does the man think of horror films?
Q19: What do they decide to do?