Jack became seriously ill after ________ in polluted air for many years.
#89778
A
breathed 
B
breath 
C
breathing 
D
to breathe
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_____ to try his fortune abroad, he left for America.
#89961
A
Having determined
B
Being determined
C
Determined
D
To determine
At first I regretted _____ them to stay, but we soon became great friends.
#88612
A
to invite
B
invited
C
to have invited
D
inviting