----______are they staying in Beijing?----For three days.
#60010
A
How often
B
How long
C
How old
D
How soon
推荐题目
Why not ____ help when you were in trouble?
#60106
A
you ask for
B
ask for
C
asking for
D
to ask
Look! the ground is wet. It must have rained last night, _______?
#64817
A
hasn’t it
B
didn’t it
C
mustn’t it
D
hadn’t it