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--- __________ does your car need the vehicle repair?  --- Every six months.
#37276
A
How long
B
How often
C
How soon
D
What time
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He gave his life to ________ Chinese soldiers.
#43686
A
help
B
helping
C
for helping
D
helps
I always help my sister _____ her history.
#40632
A
to
B
with
C
for
D
of
—______ does Mike live?       —He lives in the city of Beijing.
#41172
A
Where
B
How
C
Which
D
What
I think this talk is worth          ．
#44005
A
to listen
B
to listen to
C
1istening
D
1istening to
Finally, we went home together.
#43810
A
At least
B
At last
C
At most
D
At first