Dan goes tobicycling twice a week.(对twice a week提问)

问题描述:

Dan goes tobicycling twice a week.(对twice a week提问)
( )( )does Dan go bicycling?

这句话的意思是丹每周去骑两次单车.如果要对每周骑两次单车提问,就应该问多久骑一次单车?就是:How often does Dan go
bicycling?