问题
选择题
--- How often do you work out?
--- _________, but usually once a week.
A．Have no idea.
B．It depends.
C．As usual.
D．Generally speaking.
答案
答案：B
交际用语。A不知道；B看情况；C和平时一样；D一般说来；结合句意可知B正确。句意：—你多久锻炼一次？—看情况。但是通常是一周一次。