Question

The duck shot a deer and an ox rewrite the following sentence from singular to plural

Answer 1

The answer will be, “The duke shot deer and oxen”

Deers is the plural form of deer but it is used rarely. Instead, we use deer only so both of them are correct in this sentence.

Whereas you need to use oxen here in place of oxes which is the perfect formation for the plural word.  

Answer 2

noun is a name of a person, place, thing.

A singular noun names one person, place, thing, or idea, while a plural noun names more than one person, place, thing, or idea.

So The duck shot a deer and an ox.

The answer will be - The ducks shot some deers and few oxen.