Question

—_______ do you go to see your grandparents?
—Once a week.

A．How far

B．How long

C．How often

D．How soon

Answer 1

C

试题分析：How far多远；How long多长；How often多久一次；How soon多久。根据下文，每周一次。可知上文问的是，你多久去看你爷爷奶奶一次？故选C。