A)He saw the big tower he visited on TV.
B)He has visited the TV tower twice.
C)He has visited the TV tower once.
D)He will visit the TV tower in June.
原文：
W: Did you visit the Television Tower when you had your vacation in Shanghai last
summer?
M: I couldn't make it last June. But I finally visited it two months later. I plan
to visit it again sometime next year.
Q: What do we learn about the man?