问题
_______ do you exercise in a week?[ ]
A: How long
B: How far
C: How to
D: How often
B: How far
C: How to
D: How often
正确答案是：
同类题型
How did your uncle learn to play the guitar?—By ________.
The pay phone is next _____ the library．[ ]
What _____ you _____ for vacation next weekend? — I’m going to Nanxi River for two days.
were electric slippers invented? —Sorry. I don’t know. [ ]
It is ______ he often fails in exams ______ makes his parents worried about him.