----______are they staying in Beijing?----For three days.
#60010
A
How often
B
How long
C
How old
D
How soon
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---      is “Animal World” shown on CCTV-2?    ---Every week
#59840
A
How long
B
How soon
C
How often
D
How many times
A: Alice, you clean the house,         ? B: But I did it yesterday.
#64585
A
do you
B
will you
C
didn’t you
D
don’t you
--_______students are there in your class,Mr Li?  --Fifty.
#60148
A
How old
B
How much
C
How many
D
what