marvelousdrew87 marvelousdrew87 24-04-2019 English contestada What change is needed to form a complete sentence? Walked along Sixth Street, looked up, and saw a hot-air balloon. Question 7 options: a) Replace the period with a question mark b) Before walked add the subject: My friends and I c) Add Wandered and in front of walked d) No changes need to be made.