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
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_____ in the library regulations that any book borrowed be returned by due time, or the borrower will be fined．
#78012
A
What is required
B
It is required
C
As is required
D
Which is required
Our country should set up more national parks animals can live freely.
#75752
A
when
B
which
C
where
D
whose
With economy getting worse，we have reached the point________we have to cut down our daily expenses.
#75100
A
that
B
which
C
when
D
where