Answer: D) Had had.
Explanation for this question is being written.
Answer: B) Had met.
Answer: A) She had laughed.
Answer: C) Had worn.
Answer: B) Past Perfectpast perfect.
Answer: D) Had happened.
Answer: B) Had been.
Answer: B) Has
Answer: B) Had visited.
Answer: C) Had passed.
Answer: B) Had left.
Answer: A) Had
Answer: A) Had never won.
Answer: B) He hadn't studied enough.
Answer: B) Had ever proposed.
Answer: C) He had witnessed.
Answer: B) Had kept.
Answer: B) It is used to show an earlier action completed before another past action.
Answer: B) Had worked.
Answer: C) Had recovered.
Answer: A) Past perfect tense.
Answer: B) Had gone.
Answer: D) Past Perfect.
Answer: D) Had never played.
Answer: C) Had eaten.
Answer: B) Past Perfect.
Answer: B) Had read.
Answer: C) Past perfect.
Answer: C) Hadn't broken.
Answer: B) Had sold.
Answer: C) Had built.
Answer: B) Had you ever seen / hadn't met.
Answer: B) Had
Answer: B) Had explained.
Answer: B) HAD
Answer: B) Had completed.
Answer: C) Had finished.
Answer: C) Hadn't eaten.
Answer: B) Had James already cooked.
Answer: A) They lost many of the games because they had not practiced enough.
Answer: B) Had prepared.
Answer: C) Had told.
Answer: D) Had called.
Answer: C) Had visited.
Answer: C) Had
Answer: A) Had gone.
Answer: C) Hadneverseen
Answer: A) Had studied.
Answer: A) Had been enforced.
Answer: B) Hadn't met.
Answer: B) Saw / had recommended.
Answer: B) Had already eaten.
Answer: A) Past Perfect.
Answer: A) Had risen.
Answer: B) PAST PERFECT.
Answer: C) Had cleaned.
Answer: D) PAST PERFECT.
Answer: C) Tense:past, Aspect:perfect, Time:past.
Answer: D) Had studied.