Answer: B) Had been accomplished.
Explanation for this question is being written.
Answer: D) Past Perfect.
Answer: A) Had completed.
Answer: A) True
Answer: C) Had left.
Answer: A) Had
Answer: A) Past perfect tense.
Answer: B) She had already left when I arrived.
Answer: C) Had testified.
Answer: A) Had fallen.
Answer: C) Had completed.
Answer: C) I had finished my homework before dinner.
Answer: A) Had found.
Answer: B) Had passed.
Answer: B) We had left before sunrise.
Answer: D) Meet a person from elsewhere.
Answer: A) Past perfect.
Answer: A) I had left.
Answer: A) We had visited Paris before.
Answer: B) Had kept.
Answer: A) Had given up.
Answer: B) Past Perfect.
Answer: D) Had known.
Answer: C) Had
Answer: B) Had started.
Answer: A) He had finished.
Answer: B) Had made.
Answer: C) Had eaten.
Answer: B) Had
Answer: C) Auxiliary verb 'had'.
Answer: A) Had learnt.
Answer: A) Had already heard.
Answer: A) Had been sent.
Answer: B) Had already left.
Answer: C) Had never studied.
Answer: A) Had broken down.
Answer: A) Sally had already left.".
Answer: B) Had + Past Participle.
Answer: C) Had / started.
Answer: B) Had been.
Answer: D) Had seen.
Answer: A) Had watched.
Answer: B) Had told.
Answer: A) Had had.
Answer: C) Had changed.
Answer: C) Had cooked.
Answer: B) Had seen.
Answer: A) Had just lost.
Answer: C) We had arrived at the station before the train left.
Answer: A) Had-seen
Answer: A) Had lived.
Answer: A) Had worked.
Answer: B) Informed
Answer: A) Had already evacuated.
Answer: A) Had climbed.
Answer: C) Had sat.
Answer: B) Had written.