6.听下面一段材料,回答22至25题.
22.When did the speaker go to Mexico?
A.Last summer.
B.Last winter.
C.This summer.
23.Why did the speaker go to Mexico city?
A.To visit his friend.
B.To enjoy something like old painting.
C.To find the subway.
24.What was the best way to the museum according to the hotel manager?
A.By taxi.
B.By subway.
C.On foot.
25.Why did the speaker take a taxi?
A.He liked traveling by taxi.
B.It would save a lot of money.
C.He couldn't manage to take the right subway.