5. Us
6. It's (I am mostly sure on this one)
7. their
8. him
9. their
Oi! You should check your grammar before you ask the question. That question also makes literally no sense.
Answer:
Explanation: M A R K M E B R A I N L E A S T
The correct answer is A (his), because a pronoun takes the place of a noun effectively. In this case, the noun being “the man’s”. -♡