Question

Using who/whom whoever/whomever

At red lights, my friend tries to race
whoever pulls up beside him.

Susan, who was in an ugly mood, pushed past a Girl Scout trying to sell cookies.

Noel, whom I've known since middle school, has decided to trade in his ancient Honda.

You should try to impress whoever has a fat wallet.

The Johnsons, who everyone in the neighborhood hates, let their noisy dogs bark all night.

Answer 1

All are correct.

Answer 2

my friend tries to race whom?

Bad Susan, very bad Susan. Be nice to Girl Scouts, they are trying to make the world a better place. I don't see a question here..

Noel, you are the subject of the sentence, therefore, the nomatative phrase following is a modifier of the subject, so it is in the subject category, who I have a known, is correct here.

you should try to impress whom..?
whom/whoever has a fat wallet is the object of impress... IMPRESS whom?

the phrase is same category as as Noel's phrase.

Answer 3

Ms Sue is right. Your answers are correct.

Answer 4

The Johnsons, who everyone in the neighborhood hates, let their noisy dogs bark all night.

this is not correct!
Everyone hates them.

Them = him = Whom

Instead, it should be:

The Johnsons, whom everyone in the neighborhood hates, let their noisy dogs bark all night.