Modern audiences can easily understand the themes of ambition and desire that the characters show.
Explanation:
One of the significant features of the plays of Shakespeare is that they are relevant in any age or period. "Macbeth" is one of the tragedies written by Shakespeare. The characters in the play represent the ambitious nature of the humans which are prevalent even in the modern period. The conflict of the character Macbeth and his desire to stand at the highest post is one of the characters of the modern period.
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".
