Legend has ______ that CaoCao, King of Wei kingdom in the Three Kingdoms period, built 72 tombs to confuse tomb diggers. 
#16362
A
it
B
this
C
them
D
itself
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Three people spoke at the meeting.____was a doctor; ____was a student; ___was a teacher.
#16683
A
He; she; I
B
The first; the other; the rest
C
One; another; the third
D
This; that; the last