(2013·高考重庆卷)It’s not easy to change habits，________with awareness and selfcontrol，it is possible.
#30669
A
for
B
or
C
but
D
so
推荐题目
As many as five courses are provided, and you are free to choose_______ suits you best.
#31464
A
whatever
B
whichever
C
whenever
D
wherever
_____ the girl was too selfish and never thought of others, she wasn’t getting on well with her classmates.
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A
Though
B
Unless
C
Since
D
Until
More strict measures should be taken____more people are infected with the virus of H1N1 flu.
#34046
A
so that
B
as if
C
in case
D
even if
It is not immediately clear __________ the housing price will go down.
#30574
A
how
B
what
C
that
D
whether
When the students heard the alarm, they all hurried to they thought was an emergency exit door．
#30175
A
what
B
which
C
where
D
who