(2013·江苏，28)In the global economy，a new drug for cancer，________it is discovered，will create many economic possibilities around the world.
#67442
A
whatever
B
whoever
C
wherever
D
whichever
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Mr. White didn’t understand __________ made his wife so upset this morning.
#66608
A
what was it
B
why was it that
C
why it was that
D
what it was that
______ most of my friends wanted to do during the holiday was visit the Expo Garden.
#69278
A
What
B
That
C
As
D
Which
We want the case to be reopened even if there is the risk ______ it would concern football players.
#71502
A
which
B
what
C
when
D
that
Whenever I met her, _________ was fairly often, she greeted me with a sweet smile.
#74515
A
who
B
which
C
when
D
that