__a month does your father come to see you?答：twice a month 为什么填how often?——do you take P.E.classes a week 答：once or twice为什么填 how many times?

Question

__a month does your father come to see you?答：twice a month 为什么填how often?
——do you take P.E.classes a week 答：once or twice
为什么填 how many times?

Answer 1

第一个的回答是一个月两次,那么问题应该是多久；但第二个的回答是一次或两次,大问题就应该是几次how many times,主要是第一个twice后面有个a month