In the began in the mid-18 century
The correct answer should be D. <span>A bear was heard snorting near our camp last night.
In order for it to be active you would say "We heard a bear snort near our camp last night". Was + heard is used to create a passive construction. Other sentences are in active voice.</span>
Answer:
The answer would either be B or D but I think the true answer is B . . .
Hope this helps . . . . . . . . . . .
If it does not help then I am very sorry