With so much work _________, they feel worried all the time.
#91106
A
doing
B
to do
C
done
D
having done
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 ______ in prison for ten years, no one recognized him.
#91615
A
The man’s having put
B
The man being put
C
The man having been  
D
Having been
All the task ____ ahead of time, they decided to go on holiday for a week.
#91626
A
had been finished
B
were finished
C
having been finished
D
been finished