Hello guys! On sunday morning,had started the test of afa(air force academy) so, at english test i saw this question, and it make me had doubts.
32) Mark the right option to complete the statement.
"If the plane hadn't been delayed in taking off, the passengers ________ about the events in New York and Washington.
a) woudn't have known (the right answer)
b) shouldn't have known (my answer)
c) would know
d) hadn't known