—____when has the country been open to international trade?—1978,I suppose.
#79800
A
Since
B
In
C
From
D
After
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The man,_______ is often parked in front of our house, is a famous surgeon.
#34717
A
who’s car
B
of which the car
C
the car of which
D
whose car
  It will be a long time ______- he returns.
#34588
A
until
B
before
C
when
D
after