------________ are you staying in China? ------For about two months.
#70673
A
How far
B
How long
C
How often
D
How many
推荐题目
I don’t know how ________ commas. 
#69179
A
use
B
using
C
used
D
to use
________ a lot of trees in this area, but now we can see a tall building instead.
#70803
A
There used to have
B
There used to be
C
There is used to having
D
There is used to being
— She’s already left for Nanjing,    ? — Yes, she is in Nanjing now.
#68906
A
isn’t she
B
hasn’t she
C
doesn’t she
D
has she