— _____do they surf on the internet ?—Twice a week.
#43517
A
How soon
B
How much
C
How many
D
How often
推荐题目
—Don’t worry. Your brother is coming to help you. —________ he doesn’t come?
#42231
A
What about
B
Why not
C
What if
D
What for
—Do you practice how to escape from dangers every term?—Of course. Our school pays much attention to the ______ of safety.
#35789
A
development
B
importance
C
advertisement
D
difference
