Answer: C) I was reading when he called.
Explanation for this question is being written.
Answer: C) Were studying.
Answer: C) Was walking.
Answer: B) Was having.
Answer: C) Was working.
Answer: C) Was raining.
Answer: A) Was
Answer: C) Yesterday
Answer: B) Past Continuous / Past Simple.
Answer: A) Were sitting/ were flying.
Answer: C) S + was/were + Ving.
Answer: A) Were traveling.
Answer: B) Weren't working.
Answer: C) Were watching.
Answer: D) Was bored.
Answer: B) Were you doing, was travelling.
Answer: D) Past Continuous.
Answer: B) Was frying.
Answer: B) Was doing, was looking.
Answer: B) Were living.
Answer: A) Were walking.
Answer: A) Were listening.
Answer: B) They likely missed important information.
Answer: A) Was listening.
Answer: C) Were walking.
Answer: A) Were being typed.
Answer: D) Was hurting.
Answer: B) Was cooking.
Answer: A) Past Progressive.
Answer: E) Wasn't watching.
Answer: B) Was running.
Answer: A) Past continuous.
Answer: D) Past continuous.
Answer: B) Was taking.
Answer: B) He was singing.
Answer: B) Was shopping.
Answer: A) Were helping.
Answer: D) I was studying for my exam when the power went out.
Answer: B) Weren't studying/were watching.
Answer: B) Was
Answer: D) Had been running.
Answer: C) Were discussing.
Answer: C) Were not walking.
Answer: C) Were waiting/happened.
Answer: B) Was making.
Answer: B) Was watching.
Answer: D) Was teaching.
Answer: C) Was practicing.
Answer: B) Was studying.
Answer: B) Heard
Answer: B) Was reading.
Answer: C) Was rehearsing.
Answer: C) Past Continuous.
Answer: C) Was/doing
Answer: B) Was skating.
Answer: D) Were studying.
Answer: C) Was listening to, didn't hear.