I shall never forget(visit) ______ the West Lake for the first time last year.

A．The shopping center is a bit far away.
B．He doesn’t know how to get to the shopping center.
C．The shopping center is just around the comer.
D．He only knows one way to the shopping center.

A．20 years ago.
B．I’m 20 years old.
C．It doesn’t matter.
D．When I am twenty.