Раскройте скобки, употребив формы the present perfect или the present perfect continuous. 1. we (walk) ten kilometres already. 2. we (walk) for three hours. 3. i'm on a diet, i (eat) nothing but apples for the whole week. 4. he (sleep) since ten o'clock. it's time he woke up. 5. the students (work) very well this term. 6. i (work) with him for ten years and he never (say) "good morning" to me. 7. you (hear) the news? tom and ann are engaged! 8. how many baskets of apples you (pick)? it seems to me you (to pick) them for 3 hours already. 9. you (see) my bag anywhere? i (look) for it for half an hour.

We have walked ten kilometers already.
We have been walking for three hours.
I'm on a diet , I have been eating nothing but apples for the whole week.
He has been sleeping since ten o'clock.
The students have worked very well this term.
I have been working with him for ten years and he has never said 'Good morning ' to me.
Have you heard the news? Tom and Ann are engaged.
How many baskets of apples have you picked? It seems to me you have been picking them for 3 hours already.
Have you seen my bag anywhere? I have been looking for it for half an hour.