When deeply absorbed in work, ________ he often was, he would forget all about eating or sleeping.
#78684
A
that
B
which
C
where
D
when
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________ is known to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.
#78656
A
As; whom
B
What; whose
C
It; whose
D
What; whom
The first snow fell in December in our province last year, was uncommon.
#78720
A
it
B
which
C
that
D
what
____ can be seen in the chart right here, the air pollution level in the city has been increasing over the last months.
#78641
A
What
B
It
C
that
D
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Now everyone is concerned about how to conquer the economic crisis, __________is very important for us to preserve our standard of living．
#78697
A
which success
B
its success
C
the success of which
D
the success of it
When deeply absorbed in work, _____ he often was, he would forget all about eating or sleeping.
#78649
A
that
B
which
C
where
D
when