Great changes have taken place in that school. It is no longer _____ it was 20 years ago, ______ it was so poorly equipped.
A. what, when
B. that, which
C. what, which
D. which, that
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Jane tearfully explained ____ she had recently lost her husband in a car accident.
A. when
B. how
C. why
D. where
Air is to humans_____ water is to fish.
A. that
B. what
C. where
D. which
I have always been honest and straightforwar, and it doesn't matter _______ I'm talking to.
A. who is it
B. whom it is
C. it is who
D. it is whom
_______ I need is your help.
A. That
B. What
C. Which
D. /