________ a two-year period, Nancy became addicted to painkillers （止疼药）.
#34784
A
Beyond
B
Above
C
Since
D
Over
推荐题目
I meant to help him . ______， he didn’t accept my offer.
#33596
A
But
B
As a result
C
Therefore
D
However
——How do you think I should receive the reporter? ——____ you feel about him, try to be polite.
#79958
A
How
B
What
C
Whatever
D
However
She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer.
#30370
A
since
B
before
C
after
D
until
People in some countries waste water______ people in others don’t have enough to drink.
#31420
A
while
B
because
C
if
D
so