More teens are smoking in Beijing, ______ the number of primary and middle school students picking up the habit has more than doubled from previous years. 
#66683
A
which
B
when
C
where
D
that
推荐题目
Dad is used to smoking and drinking. There is no chance________I am able to talk him into ________.
#67540
A
whether;giving it up
B
of whether;giving them up
C
which;stopped it
D
that; getting rid of them
________, I could not memorize the text.
#69938
A
However hard did I try
B
However hard I tried
C
However I tried hard
D
However I had tried hard