Mr. Williams is the teacher (who, whom) went to such great trouble to help the students.

*who
2. Would Agnes like to swim at Holden Pond with Ellie and (I, Me)?
*I
3. What do you think about (his, him) being chosen as class president?
*him
4. Introduce the guests with (whom/whoever/who/whomever) you will be sharing ideas for the fundraiser.
*whom

I got all of them right, the answers are

1-What do you think about (him, *his) being chosen for class president.
2- Introduce the guest with *whom you will be sharing ideas for the fundraiser.
3-Would Agnes like the swim at Holden pond with Ellie and *me
4-Mr.Williams is the great *who went to such great trouble to help the students.

5. B

6. A
7. B
8. B (his) idk why but I picked him and got it wrong
9. A

Imagine if our teachers had access to our search history.

Heres what I got, I got an 100

1. called in a ballistics* expert
2. is extremely wealthy is an example of *situational irony
3. patting on the cheek is *patronizing
4. his* playing the chords
5. Mr. Williams *who
6. My mother *portended
7. Ellie and *me
8. his* being chosen as class president
9. introduce the guests, *whom
10. The raging fire *immolated
Hope this helps

1. ballistics

2. situational irony
3. patronizing
4. His
5. who
6. portended
7. me
8. his
9. whom
10. immolated

Got 100% on Connexus :)

Thank you!

Hmm I'm pretty confident in 1 and 3 so I'll take another shot at 2 and 4.

2.me
4.whomever

You're very welcome.

Yes, 2 must be "me" because it's one of the objects of the preposition "with."

4. was already correct.

For 3, study this:
http://grammar.ccc.commnet.edu/grammar/gerunds.htm#possessive

Two are correct and two are incorrect.

Go back and re-study pronoun uses.