Question 28
PronounsChoose the option that best completes the gap(s): It is ________ responsibility to look after their parents in old age.
- A.theirs'
- B.their
- C.theirs
- D.their's
Show the answer and explanation
Answer: B (their)
Explanation
Before a noun ('responsibility') we use the possessive adjective 'their'. 'Theirs' stands alone, and 'theirs'' and 'their's' are not words.