单项选择题

Having (finished) his term paper (before the deadline), (it was delivered) to the professor (before) the class.

A．finished
B．before the deadline
C．it was delivered
D．before
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单项选择题
He is opposed (to) the project (for the reason) why it is not (feasible) (for the time being).
A．to
B．for the reason
C．feasible
D．for the time being
单项选择题
(Prior to) our (conference), the (executive) director had requested that everyone (was) well prepared.
A．Prior to
B．conference
C．executive
D．was
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