________ a two-year period, Nancy became addicted to painkillers （止疼药）.
#34784
A
Beyond
B
Above
C
Since
D
Over
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I’m sorry you’ve been waiting so long , but it will be an hour David gets back .
#31813
A
before
B
since
C
till
D
after
Be patient with your students ______ it takes time for them to adjust to their new way of school life．
#33818
A
and
B
so
C
as
D
or
We do not have enough money.________，we cannot afford to buy the new car.
#32754
A
However
B
Anyway
C
Therefore
D
Though