Question

---You look very healthy. ________do you exercise?
-----I exercise three times a week.

A．How often

B．How many

C．How much

D．How soon

Answer 1

A

试题分析：How often多久一次；How many多少个；How much多少，提问不可数名词；How soon多久。感觉下文，我每周联系三次。可知上文问的是，你看起来很健康，你多久锻炼一次？故选A。