— do you go home to see your parents ?— Twice a month.A. How oftenB. How longC. How farD.

问题补充：

— do you go home to see your parents ?

— Twice a month.

A. How often

B. How long

C. How far

D. How old

答案：

(答案→)A. How often

B. How long

C. How far

D. How old

解析：A. How often多久一次，表示频率B. How long多长时间，C. How far多远的距离 D. How old多大年纪；句意：你多久回家看你爸爸妈妈一次？一个月两次。故选A