Задание
Read these sentences and fill in the gaps with the correct verb form in the past perfect continuous.
Example 0. John __________ his dog all day. He was tired yesterday. (walk)
Answer 0. had been walking.
We [ ] to open the door for five minutes when Jane found her key. (try)
She [ ] here for over \(2\) years before you started working here. (work)
Tom [ ] TV for two hours when I arrived. (watch)