One theory, ________ suggested by Harvard University, is that humans began cooking their food, thereby releasing nutrients locked in the raw food and reducing the time needed to chew it.
#67116
A
which
B
as
C
that
D
what
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It was an exciting moment for these fans this year, _____ for the first time in years they saw their favorite singers.
#69663
A
that
B
which
C
when
D
while
The result was not the same as they had expected, ______ was rather disappointing.
#66996
A
that
B
which
C
when
D
what
____is known to us all,,things can easily go wrong when people are under______.
#74106
A
Which;control
B
As; load
C
It; strength
D
As; stress