Question

Choose the correct pronoun to complete each of the following sentences. The last house at the end of the street is theirs. Within the sentence, “theirs” is in the _______ case.

Answer 1

"Theirs" in used in the "genitive case".

Step-by-step explanation:

In the sentence provided, "theirs" functions as a possessive pronoun replacing the noun phrase "their house".

The genitive case is a grammatical one that expresses possession, generally, by adding an apostrophe followed by "s".

The genitive case is also known as "the Saxon genitive" since it comes from the old English which left its mark ('s endings) in modern English.

Answer 2

“theirs” is in the possessive pronominal case. Theirs works as a possessive pronoun because it substitutes for "... their house". The sentence could be : "The last house at the end of the street is (theirs ) their house."