Answer: A) The bell rang.
Explanation for this question is being written.
Answer: A) Walked / was sitting.
Answer: B) Were flying / were due to attend.
Answer: A) Past Progressive.
Answer: B) Was studying.
Answer: C) Was cooking/arrived.
Answer: A) Was living, was studying.
Answer: A) Were talking / saw.
Answer: C) Were playing, rang.
Answer: B) Was watching.
Answer: A) Were just starting.
Answer: B) Was watching / went out.
Answer: B) Was driving.
Answer: B) Was leaving / slipped.
Answer: C) Was reading-broke.
Answer: C) Was walking.
Answer: B) Past Continuous.
Answer: A) Were already eating.
Answer: A) Were playing.
Answer: C) Was waiting/arrived.
Answer: C) Was cleaning / saw.
Answer: B) Were
Answer: C) Were rollerblading / phoned.
Answer: A) When they heard the news.
Answer: C) Was doing / arrived.
Answer: C) Was having, opened.
Answer: A) Heard
Answer: C) F, was looking forward.
Answer: C) Were playing, started.
Answer: A) Were working/went out.
Answer: B) Arrived, were having.
Answer: C) Wasn't doing.
Answer: D) Was going arrived.
Answer: B) Was fixing / hurt.
Answer: A) Was driving / saw.
Answer: B) Was trying, rang.