Question

“________ do you exercise?” “Three times a week. ” A．How long B．How often C．How fa.

“________ do you exercise?” “Three times a week. ” A．How long B．How often C．How far D．How many

Answer 1

B

试题分析：How long多长；How  often多久一次；How far多远；How many多少个。根据下文，一周三次。可知上文问的是，你多久锻炼一次？故选B。