The fact that smoking is harmful to health is__________ most smokers admit．
#32340
A
what
B
whether
C
where
D
that
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________ H7N9 is a deadly virus, it is still safe to eat thoroughlycooked chicken.
#30280
A
Until
B
While
C
If
D
Since
--- John failed his final exam.-- I’m not surprised at the news at all. _______, he is never seen busy with his lessons.
#31414
A
Above all
B
In all
C
First of all
D
After all
____ she goes, there are crowds of people waiting to see her.
#34699
A
Wherever
B
However
C
Whichever
D
Whoever
Leave your key with a neighbor ________ you lock yourself out one day.
#33070
A
soon after
B
even if
C
ever since
D
in case