Even if there is no scientific proof secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk.
#67696
A
which
B
that
C
when
D
where
推荐题目
Great changes have taken place in that factory. It is no longer _________ it was 20 years ago,_____ it was so poorly equipped.
#70299
A
what ,when
B
that ,which
C
what ,which
D
which ,that
Mr Green drove slowly on the way home until he reached the high way, ______the speed limit was 60 miles per hour.
#73247
A
because
B
which
C
where
D
that
Though I have no idea _______ the new film is about, I know it is popular with all who have seen it.
#68952
A
whether
B
why
C
that
D
what