What is the correct pronoun for each sentence?

Question

1. The first girl chosen was (she,her).
2. He treasure hunters, (he and her, he and she), were interviewed by reporters.
3. Mike and (she,her) are leaving tomorrow.
4. Lebron and (he, him) have been inseparable since third grade.
5. The strongest swimmers were Michael and (he,him).
6. Watching (they, them) he realized how talented they were.
7. I look forward to (us,our) planning a party.
8. Tony,Andy,and (I,me) are going to the lake this weekend.

Answer 1

No ideas on any of them?
Nominative case: I,he,she,we,they
Objective case: me,him,her,us,them

So,

#3 she
#6 them
#7 our -- why? "our" is an adjective

can you get the others?