Question

Which word correctly completes the sentence? ____ trying to assemble the new bookshelf.

a.there
b. their
c. they're?

Answer 1

C.) They're is the correct answer.
They're is a combination of the words "they" and "are". The word "there" is referring to a place, and the word "their" is referring to possession. Therefore, "they're" is the only one that makes sense.