Choose the correct answer

ed
is
17 We regret
cancelled due to bad weather.
a informing
passengers that all flights have been
b
having informed
c to inform
18 Matthew's determination
an inspiration to us all.
a to succeed
c to be succeed
d to informing
against all the odds is
b succeeding
d his succeeding
19 Danielle was relieved that she had passed her
exams with flying colours!
a finding out
c to finding out
b to find out
d find out