PAST PERFECT OR PAST PERFECT CONTINUOUS

Peter was Sally's best friend. She _______ (know) him all her life.

• HAD KNOWN

• HAD BEEN KNOWING

The children were wet because they ________ (play) football in the rain.

• HAD PLAYED

• HAD BEEN PLAYING

We were starving because we ________ (not / eat).

• HADN'T EATEN

• HADN'T BEEN EATING

I was delighted when I found my keys. I______ (look) for them for hours.

• HAD LOOKED

• HAD BEEN LOOKING

She was exhausted because she ________ (work) since eight o'clock that morning.

• HAD WORKED

• HAD BEEN WORKING

Everywhere looked white because it ________ (snow) all night.

• HAD SNOWED

• HAD BEEN SNOWING

The passengers were cross because the airline ________ (lose) everyone's bags.

• HAD LOST

• HAD BEEN LOSING

I ________ (not / see) Jacob for several years, but I recognised him immediately.

• HADN'T SEEN

• HADN'T BEEN SEEING

When I arrived at the theater, Kathy _________ (pick, already) up the tickets and she was waiting for us near the entrance.

• HAD ALREADY PICKED

• HAD ALREADY BEEN PICKING

It was more than a month before we realised what _______ (happen) to him.

• HAD HAPPENED

• HAD BEEN HAPPENING