The use of both "me" and "her" as subjects in the sentence is incorrect, as both of those pronouns are the objective forms. Both need to be changed to their respective subjective forms. "She and I have been working" is the only answer choice to make this change properly.

The use of "she and I" as the object of a sentence is wrong, as both "she" and "I" should only be used as the subjects of a sentence. The pronouns need to be changed to their respective objective forms. The only answer choice that uses the correct pronouns is "directly to her and me."

The use of "him" in the subject is incorrect, as "him" is the objective third person male pronoun. It needs to be changed to the subjective third person male pronoun, "he." "She and he never got along" is the only answer choice that uses the correct pronouns.

The use of the subjective first person pronoun "I" in this sentence is incorrect, as it is in the position of an object. The pronoun must be changed to the proper objective first person pronoun, "me." The only answer choice that uses the correct pronoun is "only supposed to be received by me."

The use of "I" in the object of a sentence or phrase incorrect. "I" needs to be changed to the objective first person pronoun, "me." The only answer choice that correctly makes this change is "to both the coach and me."

The use of both "me" and "him" in this sentence is incorrect, as they are both objective pronouns used as the subject of the sentence. Both pronouns need to be changed to the respective first and third person subjective pronouns. "He and I went to the store yesterday" is the only answer choice that uses the correct pronouns.

The use of "I" in the object of a sentence or phrase is incorrect, as it should only be used as the subject of a sentence. The pronoun must be changed to the first person objective form, "me." Therefore, the correct answer choice is "a collaborative effort between the engineers, the designers, and me."

The use of the pronouns "he" and "I" in the object of a sentence or phrase is incorrect, as they are both subjective pronouns. Each pronoun must be changed to its respective objective form. Thus, the correct answer choice is "never seen by either me or him."

The use of "him" in the subject of a sentence is incorrect, as "him" is the objective third person pronoun. The pronoun needs to be changed to a subjective pronoun because it appears in the subject of the sentence. The only answer choice that takes care of this problem is "They had known each other for years."

The use of "me" as the subject of a sentence is incorrect, as "me" is an objective pronoun and should only be used as the object of a sentence. The only answer choice that takes care of this pronoun issue is "My little sister and I have always had trouble getting along with each other.