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.
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A
which
B
as
C
that
D
what
推荐题目
5.The growing speed of a plant is influenced by a number of factors, _______ are beyond our control.
#74680
A
most of them
B
most of which
C
most of what
D
most of that
A container weighs more after air is put in,_____proves that air has weight.
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A
as
B
it
C
that
D
which
______ home yesterday afternoon, it began to rain heavily.
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A
On my arrival
B
On arriving
C
While I got
D
When I got
The idea ____ he didn’t have to stop at the red light at night caused the traffic accident.
#67850
A
that
B
which
C
what
D
why