The children, ________ had played the whole day long, were worn out.
#76140
A
all of what
B
all of which
C
all of them
D
all of whom
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When deeply absorbed in work，________he often was，he would forget all about eating or sleeping.
#75247
A
that
B
which
C
where
D
when
Taobo is Asia's largest retail（零售的） network platform, ______ people can buy and sell many kinds of things．
#78369
A
where
B
when
C
that
D
whose
I am quite sure that Mr. Smith will take up his story ___ he stopped yesterday.
#78590
A
that
B
in which
C
where
D
on which