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
______, as long as I’m with nature, I don’t care.
#67998
A
However tough is the journey
B
Whatever tough is the journey
C
However tough the journey is
D
Whatever tough the journey is
----Have you finished the book ? ----No, I’ve read up to _______ the children discover the secret cave. .
#67888
A
which
B
what
C
that
D
where
I can never forget the day _______ we worked together and the day ______ we spent together.
#73355
A
when; which
B
which; when
C
what; that
D
on which; when
______everybody enjoys fresh cut flowers around his house．few people know how to keep them for as long as possible．
#72736
A
Because
B
Since
C
While
D
If