Answer: C) Had seen, went.
Explanation for this question is being written.
Answer: B) Come-happen
Answer: A) I had eaten breakfast before I went to school.
Answer: B) Were
Answer: B) Had earned-turned.
Answer: C) PAST PERFECT.
Answer: A) Began, had met.
Answer: B) Past Perfect Tense.
Answer: E) Had failed/refused.
Answer: C) Had been.
Answer: B) Had finished.
Answer: C) Went, had started.
Answer: C) Past action.
Answer: B) My friend had studied Japanese before she moved to Japan.
Answer: C) Had grown.
Answer: B) He said that he had finished his work.
Answer: A) Had already left, arrived.
Answer: B) Incorrect
Answer: C) Was invented.
Answer: C) Had decided.
Answer: B) Died, had been.
Answer: D) Had eaten-took.
Answer: A) Established
Answer: A) Would have told.
Answer: C) Opened
Answer: C) Had spent; got.
Answer: D) Told, had never been.
Answer: C) Had given/ wouldn't have had.
Answer: B) Bought
Answer: A) Had taken / came.
Answer: B) Left
Answer: A) Met, had lived.
Answer: B) Had had.
Answer: B) Arrived had put.
Answer: A) Had been discussed / came.
Answer: C) Arrived / had already made.
Answer: A) Had they known, decided.
Answer: C) Had lived.
Answer: C) Realised / had lost.
Answer: C) An activity that was completed before another past action.
Answer: A) Simple Past and Past Perfect.
Answer: B) Had / eaten.
Answer: B) Had written-published.
Answer: B) Had planned/reconsidered.
Answer: A) Was prepared / had got up.
Answer: A) A Louise first did a lot of training and then she took part in the tennis competition.
Answer: B) Past perfect-Simple past.
Answer: E) Saw-had written.
Answer: A) Had already started / got.
Answer: A) Arrived / had forgotten.
Answer: B) Had finished, came.
Answer: A) Reached
Answer: B) Had memorized, called.
Answer: B) Describe unreal or imaginary events.
Answer: B) They finished the test before the bell rang.
Answer: A) Blew / had left.
Answer: C) Didn't play / had had.
Answer: B) Got / had happened.
Answer: B) Went out.
Answer: D) D
Answer: B) Didn't know,hadn't told.