Answer: C) Was watching.
Explanation for this question is being written.
Answer: A) Were watching; came.
Answer: A) Was watching/came.
Answer: C) Was going.
Answer: B) Was explaining; raised.
Answer: A) Were watching/ heard.
Answer: C) Was making.
Answer: A) Was driving / started.
Answer: B) Was cooking-rang.
Answer: A) Past Continuous.
Answer: A) Was writing / broke.
Answer: A) Past simple.
Answer: A) Was painting the ceiling when.
Answer: A) Was reading-called.
Answer: A) Was watching a movie.
Answer: A) Fell
Answer: B) Past Continuous interrupted.
Answer: D) Found an ad.
Answer: B) Past continuous.
Answer: C) Were watching/came.
Answer: A) Were traveling / realized.
Answer: D) Had been eating; felt.
Answer: A) Broke/ was cleaning.
Answer: C) Past Continuous.
Answer: B) Was watching / rang.
Answer: D) . was trying-interrupted.
Answer: B) Met, was shopping.
Answer: D) Rang-were having lunch.
Answer: B) Was cooking/ knocked.
Answer: C) Was lying / rang / stopped.
Answer: C) Was reading / heard.
Answer: A) Had
Answer: B) Was watching / started.
Answer: B) Were talking.
Answer: C) Was cleaning.
Answer: B) Were having-came.
Answer: A) To describe a longer background action and a shorter action during it.
Answer: C) Was reading.
Answer: D) Got, was sleeping.
Answer: D) Went / were discussing.
Answer: A) I was sleeping when the storm started.
Answer: C) Was cooking / came.
Answer: B) Was being chased.
Answer: C) Had been cycling.
Answer: B) Was waiting; was having.
Answer: C) Were walking-began.
Answer: C) Were waiting/ called.
Answer: A) Was working-took.
Answer: A) Were waiting-saw.
Answer: A) Was attending, walked.
Answer: C) Were you doing/went.
Answer: A) Were playing/started.
Answer: A) Was studying / crashed.
Answer: B) Was ironing | rang.
Answer: C) Was learning.
Answer: D) Were playing.
Answer: C) Past continuous-Simple past.
Answer: B) Happened
Answer: C) Were cleaning / arrived.
Answer: A) Saw-was walking.
Answer: B) Past continuous tense.