____ the TV play, he got down to ____ his homework.
#96801
A
Watching; do
B
After his watching; do
C
Watched; doing
D
Having watched; doing
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Many people prefer large cars, _____large cars are safer than small ones. 
#90255
A
thinking
B
to think
C
think
D
having thought
When he looked up, he suddenly found himself          by a group of teenagers, 
#95568
A
to be surrounded;
B
surrounded;
C
be surrounded;
D
having been surrounded;
I regret ______ that we have no news for you.
#95957
A
to say
B
saying
C
to have said
D
having said