W: When I’ m 60, I will retire from my position.
M: Oh, there are three years to go.

How old is the woman now()

A．usually used by children to get sweets from others
B．a warning used by criminals to snatch something
C．a secret was used by protestant gunmen to kill somebody
D．an old saying, but not used now

A．A film about the Great Wall.
B．A visit to the Great Wall.
C．A talk on the Great Wall.