________ 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
It was some time _______ I realized the fact that I had been cheated by the salesman.
#31376
A
until
B
before
C
unless
D
since
Science fiction writers often write about _______will happen in “tomorrow’s world”.
#29984
A
why
B
that
C
what
D
how
Viewers continue to watch TV ______ they complain about the quality of the programming.
#33448
A
even though
B
as if
C
as long as
D
unless
He always brings me a pretty gift _______ he comes to visit me.
#31897
A
by the time
B
every time
C
sometimes
D
at times
We were told that we should follow the main road ___ we reached the central railway station.
#34535
A
whenever
B
until
C
while
D
wherever