问题

_______do you sleep every night? —Six to eight hours. [ ]
A: How long
B: How often
C: How
D: How many times
B: How often
C: How
D: How many times
正确答案是:
同类题型
If you watch carefully, you can see_______________ the man does the trick.
_____ is no doubt _____ he will be successful someday.
I had a bad cold. The doctor asked me ______ in bed for a good rest.
does it take you to watch TV?—- About forty minutes.[ ]
Is your grandma the winner of ____ singing contest? —-Yes. And she is quite ____ unusual woman.