The answer is A) The tree was planted by Mary.
Answer:
C
Explanation:
They welcome him and discuss what he says to them
My friend, Alex, plays tennis.
My = possessive pronoun
friend = subject
Alex = an appositive (which is a noun that renames another noun right beside it) -- though not an adjective, it functions like one to explain which friend
plays = verb
tennis = direct object
hope this helps :)
The correct answer is "their".