The man __________ for his frankness will make a speech at the meeting.
A. knowing
B. known
C. beingknown
D. having known
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There was nothing to prevent her from _______ so.
A. to do
B. doing
C. done
D. being done
He was seen ________out five minutes ago.
A. go
B. to going
C. to go
D. having gone
Even though _________every opportunity, they would not try.
A. give
B. gave
C. giving
D. given
She was very sorry __________him at the airport.
A. not to meet
B. to not meet
C. to have not met
D. not to have met
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