—Oh, you have a headache and a cough. __________ have you been like this?— Two days.
#70402
A
How long
B
How often
C
How old
D
How many
推荐题目
It was rather cold yesterday,      ? 
#69710
A
wasn’t it
B
was it
C
didn’t it
D
did it .
Most of my classmates would rather ______ on weekends than just ________ at home.
#70530
A
to volunteer, to do homework
B
volunteer, do homework
C
volunteering, doing homework
D
volunteer, to do homework
Betty had nothing to do last Sunday afternoon, ____________? 
#68816
A
hadn't she
B
had she
C
didn't she
D
did she
——Susan has never been to Beijing, ________?——________, she went there with her parents last month.
#69894
A
did she; No, she didn’t
B
didn’t she; Yes, she did.
C
has she; Yes, she has.
D
hasn’t she; No. she hasn’t.
I don’t know how ________ commas. 
#69179
A
use
B
using
C
used
D
to use