When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
#93492
A
that
B
it
C
this
D
what
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________is no doubt that today greenhouse gases are the largest human influence on global climate.
#91866
A
It
B
There
C
This
D
That
Our neighbor has ________ ours.
#91873
A
as a big house as
B
as big a house as
C
the same big house as
D
a house the same big as
____ the terrible weather and the possible dangers ahead in the mountains, he insisted on going there alone.
#93225
A
Because of
B
In front of
C
Along with
D
Regardless of
You might as well expect a river to flow backward ____ us carrying out the plan.
#94883
A
than stop
B
as to stop
C
as stop
D
so as to stop
I ________ myself more—it was a perfect day.
#91903
A
shouldn’t have enjoyed
B
needn’t have enjoyed
C
wouldn’t have enjoyed
D
couldn’t have enjoyed