Exercise 1. Make the following sentences negative and interrogative.
1. He has been painting this fence for a long time.
2. My secretary has been typing a report for 5 hours.
3. The boys have been trying to fix that bike since morning.
4. The tourists have been waiting for the guide since 4 o’clock.
5. You have been talking for almost an hour without stopping.
6. It has been snowing heavily during the whole night.
7. We have been looking for that café for half an hour.
8. He has been writing this letter since the lecture began.
9. He has been living in this city since 1970.
10. They have been repairing the road for the last five years.

Exercise 2. Ask questions to the following sentences beginning with the words in brackets.
1. They’ve been looking for a restaurant since they came to the town (who? where ? what … for ?).
2. She has been packing her suitcase since morning (what? why?).
3. Arthur has been driving for 6 hours without any rest (who? how?).
4. They’ve been answering their child’s questions the whole day (whose? what?).
5. Ed has been playing with his dog in the park since morning (who … with, where?).
6. She has been washing up since breakfast (who? what?).
7. Her husband has been watching football on TV since breakfast (who? what?).
8. Someone has been looking through my things (why?).
9. My mother has been staying with us for three weeks (who?).
10. He’s been working here since 1990. (How long?).

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