People ________do exercise every day have a better chance of staying healthy than those ________don’t.
#78256
A
who; /
B
/; who
C
who; who
D
/; /
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The book, ___________ is green, has been lent to my brother.
#77934
A
of which cover
B
the cover of which
C
whose covers
D
its cover
I'll never forget the day _________ I was born.
#77701
A
when
B
that
C
on which
D
both A and C