Smoking, ______ is a bad habit, is popular with the young.
#77667
A
that
B
which
C
what
D
as
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The hurricane and the damage ___________ caused have done much harm to the United States.
#77565
A
that
B
it
C
what
D
when
The days are gone ________ we could leave our door unlocked at night.
#77887
A
where
B
which
C
when
D
while
It' s a pity that there are many teenagers _____only on-line activity is chatting with their e -pals !
#75860
A
who
B
that
C
which
D
whose
Great changes have taken place in that school. It is no longer it was 20 years ago，_____ it was so poorly equipped．
#76103
A
what；when
B
that；which
C
what; which
D
which；that