My friend’s flight had taken off _________ I got to the airport to see him off.
#56042
A
while
B
after
C
before
D
until
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David likes vegetables, _________ tomatoes, potatoes and cabbages. 
#56099
A
of course
B
for example
C
and so on
D
such as
-Why are you so busy?-____________I have ____________ work to do.
#55299
A
Because; too many
B
So; too much
C
So; too many
D
Because; too much