For each gap, choose a verb from the box and put it into past perfect or the past perfect continues

Привет! Давай разберём задание вместе. Нам нужно вставить глаголы в прошедшее совершённое время (past perfect) или прошедшее совершённое продолженное время (past perfect continuous). Вот пример, как это сделать.

1. The crowd ... for over an hour by the time the match began.
   Глагол: wait
   Ответ: had been waiting

2. We ... for five minutes when Ali found her key.
   Глагол: try
   Ответ: had been trying

3. When he died, my grandfather ... the business for more than 50 years.
   Глагол: own
   Ответ: had owned

4. David ... a terrible cough for a few days so he went to the doctor’s.
   Глагол: have
   Ответ: had had

5. Katrina was really angry with me because I ... to tell her the change of plan.
   Глагол: forget
   Ответ: had forgotten

6. I was pleased to sit down as I ... all day.
   Глагол: work
   Ответ: had been working

Надеюсь, это поможет! Если что-то непонятно, спрашивай.