20. The rest of his life was devoted ___ pollution ___more happily .
. To our ______, the result of the experiment is much better than we expected.
Fill in the ______ first and then wait for the interview in the next room.
He is familiar _____ this place, because he used to live in the apartment.
Large quantities of money_____ to the poor in that area. .
When the great man arrived, the club’s manager picked him up _____.