I don’t know ___________ the question.
#70356
A
what to answer
B
how to answer
C
to answer what
D
to answer how
推荐题目
There is _________in the box , is there ?
#69563
A
something
B
everything
C
anything
D
nothing
------________ are you staying in China? ------For about two months.
#70673
A
How far
B
How long
C
How often
D
How many
I don’t know how ________ commas. 
#69179
A
use
B
using
C
used
D
to use