Certainly! Here are the correct pronouns to choose for each clause:
21. Susie is the volunteer who arrived late to help.
Explanation: In this sentence, "who" is the correct pronoun to use because it refers to the subject of the clause, which is Susie.
22. The woman who is walking to her car left without paying.
Explanation: Here, "who" is the appropriate pronoun to select as it refers to the subject of the clause, which is the woman.
23. My friend, whom I would do anything for, gave me the sweetest card.
Explanation: In this sentence, "whom" is the correct pronoun to use because it is the object of the verb "do" in the clause.
24. In the play My Fair Lady, Eliza D
Explanation: The fourth sentence seems to be incomplete. If there is more to the sentence, please provide additional context for further assistance.
By using the correct pronouns in each clause, you ensure that the sentences are grammatically accurate and convey the intended meaning clearly. If you have any more questions or need further clarification, feel free to ask!