Explain more please, this isn't enough for us to know the awnser.
The technique of alliteration is being used. Alliteration is the occurrence of the same letter or sound at the beginning of closely connected words.
Answer : was delivered
Explanation : this morning gives it past tense, which knocks out “will be delivering” and “has delivered”. I eliminated “have been delivered” because it’s improper English. So, it has to be “was delivered”
Example sentence:
My dog suddenly began to growl and bare his teeth as the mailman walked towards my door, “You’re dog is one ferocious creature!” He exclaimed.
I hope that was good enough :)
Because of the war going on