In the past few years, so many areas throughout the world have been hit by such destructive earthquakes, snowstorms and tsunamis ________ we have never experienced before, ________ makes us worried a lot about nature disasters.
#93083
A
that; that
B
as; which
C
which; it
D
when; as
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While watching television,         .
#93690
A
the doorbell rang
B
we heard the doorbell ring
C
there was someone knocking at the door
D
we heard the doorbell rung
She was grateful _____ George _____ all _____he had done.
#92112
A
to; for; that
B
to; for; what
C
for; to; that
D
for; to; what