Past Perfect Simple vs Past Perfect Continuous

1. When she arrived home, he ___ TV for 3 hours.

• had watched

• had been watching

2. Because the show ___, they left the theater.

• had been ending

• had ended

3. Before Alisson left home, she ___ a shower for thirty minutes.

• had taken

• had been taking

4. By the time Robert ___ university, he had already finished school.

• started

• had started

5. Thomas cooked lunch after he ___ all the ingredients.

• had been buying

• had bought

6. Ana ___ since 10 am when she finally arrived at the restaurant.

• had driven

• had been driving

7. Lucia decided to visit Madrid because she ___ nice photos of it.

• had been seeing

• had seen

8. By the time we ___ home, it ___ since 6 pm.

• a) entered

  b) had been raining

• a) had entered

  b) had rained

9. a) What ___ before the tornado started?

b) I'd been sleeping on the sofa.

• had you done

• had you been doing

10. When the Spaniards arrived at Peru, the Incas ___ Machu Picchu.

• had already built

• had already been building