Answer: D) Had, cooked.
Explanation for this question is being written.
Answer: B) Had had.
Answer: A) Started
Answer: D) Hadn't informed.
Answer: B) Had already started.
Answer: C) Would have attended.
Answer: D) Had collected.
Answer: A) Had already read.
Answer: B) Earned-travelled
Answer: C) Had made.
Answer: C) Had been.
Answer: B) Washed
Answer: A) Had seen.
Answer: D) Had completed.
Answer: B) Hadn't prepared.
Answer: B) Had / tried.
Answer: B) Hadn't studied.
Answer: C) Had finished.
Answer: B) Had
Answer: C) Past perfect.
Answer: D) Had paid.
Answer: C) Had we arrived.
Answer: B) Had been.
Answer: B) Past perfect.
Answer: A) Had known.
Answer: B) Had brushed.
Answer: D) Had been fed.
Answer: A) Had already gathered.
Answer: D) Past perfect.
Answer: C) Had finalized.
Answer: A) Past perfect.
Answer: D) Had already begun.
Answer: A) Past Perfect.
Answer: B) Had left.
Answer: C) Had already taken off.
Answer: A) She had tidied up.
Answer: C) Had seen.
Answer: D) Had
Answer: A) Had never visited.
Answer: B) Had turned.
Answer: A) Had been.
Answer: D) Had ended.
Answer: C) Had opened.
Answer: D) Had finished.
Answer: B) Past Perfect Tense.
Answer: B) Had joined.
Answer: C) Had lost.
Answer: C) Had sprained.
Answer: B) I had to.
Answer: D) Had finished delivering.
Answer: A) Had
Answer: D) He had closed the shop before he left.
Answer: B) Had learnt.
Answer: C) I had gone to the store before it rained.