Question

Fill in FOR or SINCE into the gaps.

1. Nobody has seen him _______________________ last Friday.
2. It has been foggy ___________________________ some days.
3. He has been fishing __________________________six o'clock.
4. They've been living in France __________________eight years.
5. The pilots have been on strike __________________two months.
6. We've had terrible weather ____________________Saturday.
7. I've known Tom _____________________________ 1990.
8. We have been waiting for the bus _______________half an hour.
9. She hasn't lost a match ________________________April.
10. Things have changed ________________________ she's become headmaster.
11. The police have been looking for him ____________a month.
12. Our dog has been ill __________________________two days.
13. I've been looking for this book _________________ a long time.
14. I've been working ____________________________I got up.
15. The kettle has been boiling ____________________ ten minutes.

Answer 1

1. Since
2.for
3. Since
4.for
5.for
6.since
7.since
8.for
9.since
10.since
11.for
12.for
13.for
14.since
15.for

Answer 2

For y since se usan para indicar la duración de un suceso.

For y Since.

Se usan mayormente con el presente perfecto. Since se usa para expresar desde cuando se hace y for para expresar por cuanto tiempo lo ha estado haciendo.

1. Nobody has seen him since last Friday.

2. It has been foggy for some days.

3. He has been fishing since six o'clock.

4. They've been living in France for eight years.

5. The pilots have been on strike for two months.

6. We've had terrible weather since Saturday.

7. I've known Tom since 1990.

8. We have been waiting for the bus for half an hour.

9. She hasn't lost a match since April.

10. Things have changed since she's become headmaster.

11. The police have been looking for him for a month.

12. Our dog has been ill for two days.

13. I've been looking for this book for a long time.

14. I've been working since I got up.

15. The kettle has been boiling for ten minutes.

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