问题
选择题
—______ do you walk your dog?
—Sometimes.
A．How many times
B．How often
C．How long
D．How soon
答案
答案：B
题目分析: 句意：你多久遛狗一次？有时。How many times几次，How often多久一次，How long多久， How soon多久；根据Sometimes.有时，可知是问频率多久一次，故选B.