There is one correct answer to each question. You can keep trying for a perfect score before you submit this on Classroom.
Questions 1-8 use Direct Object Pronouns. Figure out what is getting the action of the verb in the given sentence, and your answer will include the DOP for that thing.
Also remember that the subject changes from question to answer sometimes.
Examples: Did you do this? --> Yes, I did it. Did you all do this? --> Yes, we did it.