Past Perfect Continuous Tense

They told me that the renovation works __________ on since morning.

I __________ for an hour when an ambulance arrived at my neighbour's.

By the time Mrs Lee got home, the children __________ computer games for two hours.

Kelly was devastated that the dollhouse she __________ for the last three weeks was destroyed.

Jim could not have broken the vase as he __________ to repair his handphone in his room all morning.

Steve was disappointed when he had to cancel the trip he __________ since two months ago.

Mary was distraught when she could not calm the baby who __________ for an hour.

Zac was ecstatic when his parents bought him a bicycle he __________ for.

Peter and Jane __________ at the park when they parents found them.

Aiden and Siti __________ for twenty minutes when the Discipline Master was called.