I.

1. d

2. b

3. d

4. c

5. b

6. d

7. a

8. d

9. b

10. c

II.

1. We haven't seen her since Christmas Day.

2. This is the first time I have eaten this kind of food.

3. It has rained for an hour.

4. The last time we visited my grandparents was two months ago.

5. I began studying English three years ago.

6. It's nearly five years since my brother last saw his best friend.

7. How long has it been since you started learning English?

8. Jane is the same height as her older sister.

9. Those houses are larger than these.

10. Your backpack is different from mine.

11. I haven't seen him since 1989.

12. How long has it been since you learnt English?

13. Are you as old as Jane?

14. The gardener told us not to walk on the grass.

15. My friends arrived sooner than I expected.

III.

1. learnt

2. has been

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