All these gifts must be mailed immediately__________ in time for Christmas.
#91658
A
in order to have received
B
in order to receive
C
so as to be received
D
so as to be receiving
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If _____ green, the door might look more beautiful.
#98357
A
paint
B
painted
C
to paint
D
painting
The question ______ last night was of great importance. 
#97848
A
discussed
B
discussing
C
to be discussed
D
discuss
Though       to see us, the professor gave us a warm welcome.
#95576
A
surprising
B
was surprised
C
surprised
D
being surprised