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".
Answer:
To show that PPG was responsible for polluting the bayou
Explanation:
Answer:
"He is leaving." she said, "to get Ann's gift."
Explanation:
Because instead of a sentence it shows the person is actually talking
Juliet hides from her parents to talk to Romeo
