@Active Activity.

2. Had had.

3. Hadn't seen.

4. The next day.

5. Wouldn't be.

6. The year before.

7. Hadn't known.

8. Was watching.

9. Had eaten.

10. That day.

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2. Had had

3. Hadn't seen

4. The next day

5. Wouldn't be

6. The year before

7. Hadn't known

8. Was watching

9. Had eaten

10. That day

V:

1.My grandmother said there had been no cell phones a long time ago.

2.The telephone was invented in 1876.

3.Smartphone are much convenient than tablets.

4.Two days ago, Tom phoned me and said he couldn't ckme in that day, because he was sick.

5.When did you work on this project?

6.Eventhough it was freezing, we had a qreat holiday in Canada.

8.Maya said to Sara:" I have just talked to a robot in the exhibition.

9.Paula is realy looking forward to hearing the band's new album.

VI:

1. D      2. B      3. B      4. D        5. D

6. C......7. D      8. C      9. A       10. C