Many countries are now setting up national parks animals and plants can be protected.
#76501
A
when
B
which
C
whose
D
where
推荐题目
This is the third book that he has written in the past five years, the first of I really enjoyed.
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A
which
B
that
C
those
D
them
My sister ,_____ my family are proud, was admitted to Tsinghua University last autumn.
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A
who
B
which
C
in which
D
of whom
(2013·辽宁六校高三联考)Have you ever seen any trees ________ leaves were black because of the polluted air?
#75395
A
whose
B
that
C
which
D
who
I will never forget the day _____ we worked together in London．
#78183
A
when
B
on that
C
which
D
while