This sentence contains a misuse of the word "whom." "Whom" is only used when it functions as the object of a verb or preposition in a clause, but it is clear that whatever word should be in this position is acting as the subject of the clause in this sentence. The appropriate answer is "who" because the pronoun is acting as the subject of the clause and is referring to people. The correct answer is "who."

This sentence uses the wrong form of "who." It is clear that "that" and "which" are not appropriate, because Joshua is a human. The pronoun "who" is not the subject of the relative clause; however, the "who" is being liked, not doing the liking. When it is not the subject of the clause, the appropriate form is "whom." The correct choice is, "whom."

This sentence uses the wrong case of "he" and "I." Think about it: if these pronouns were in separate sentences, you would not say "to he" or "to I." You give a gift "to him" or "to me." Furthermore, the first person pronoun (I/me) should always come after other pronouns in a group. The correct choice is, "to him and me."

This sentence uses the wrong pronoun. "We" is always the subject of a clause; the correct form here is "us." The correct choice is "My mother told us to play outside" because it is the most concise option that fixes this issue. "We were told by my mother to play outside" is technically grammatically correct, but it is unnecessarily in the passive voice, and thus obviously a less concise choice than the correct answer option.

This sentence misuses the word "me." Rephrasing the sentence a bit, "Me went to the park" does not make much sense. "Me" is only used when it is the object of another word (verb, preposition, etc.). The correct form is "I;" the other choices make no sense because it changes the meaning of the sentence. The correct choice is, "My friend and I went."

This sentence contains two error: misuse of the pronoun "who" and a dangling preposition (from). First, the relative clause could be rephrased as "I borrowed the movie from her. The word "her" functions as the object in this phrase, so, likewise, "who" should function as the object in the relative clause. "Who," though, is always the subject of a sentence; the correct form is "whom." Furthermore, prepositions should never end a clause; it would be most appropriate for the from to appear before "whom." The correct choice is, "from whom I borrowed the movie."

This sentence misuses the word "who." Specifically, it is in the wrong case. If the clause "who many wanted to speak at their events" were to be rephrased, it would be "Many wanted her to speak at their events." The word that "who" is substituting for is the object of this clause; therefore, the correct form is "whom." The correct choice is, "The speaker, whom many wanted to speak at their events."

This sentence uses the wrong case of the word "who." If we were to reword the relative clause,  "who many students admire" would become "many students admire him." Since the "him" is the direct object of the word "admire," the correct choice is "whom ("who" is used when it is the subject of the clause, "whom" when it is a direct object)." Note also that the word "that" does not begin a new clause, so that choice would be incorrect since the commas would have to be omitted; also, "which" is never used for humans, always "who." The correct choice is, "The professor, whom many students admire, is."

This sentence misuses the pronoun "whom." "Whom" is used when the word it refers to is acting as the direct object of something in the clause it appears. Rewording the relative clause would change "whom was driving" to "he was driving." Since "he" is the subject of the clause, the correct word here is "who." Note that "that" does not begin a relative clause, so using this word would mean the commas would need to be omitted for the sentence to be correct. The correct choice is, "who was driving, flipped the car."

This sentence misuses the word "whom." "Whom" is only used when the pronoun's placement in the relative clause acts as the object of something. If we reworded this, "he helped her with her project" would be the best choice. Since "he" is the subject, the correct choice is "who." Note that "that" would not take a comma before (or after) the word, and "which" can never be used with humans. The correct choice is, "who helped her with her project."