5. what are they doing now? (present progressive) they are working in the reading room.(present progressive) they have been working there for three hours already. (present perfect progressive)
9. have you found your notebook? (present perfect) no! I'm still looking for it. (present progressive) I have been looking for it for two hours(present progressive), but haven't found it yet.(present perfect)
10. you have been playing with a ball for three hours already. (present perfect progressive) go home and do your homework
15. what are you doing?(present progressive) I'm reading. (present progressive)I have been reading for two hours already.(present perfect progressive) I have already read sixty pages. (present perfect)
20. come along, Henry, what are you doing now? (present progressive) I'm waiting for you for a long time (present progressive)
1.
13. c (to go)
14. c (at)
15. b (to eat),
16. a (are coming)
17. b (understand)
18. c (be)
19. c (in)
20. a (asked)
2.
I have cleaned the house.
You have scrubbed the bathtub.
We have swept the hallway, the kitchen, and the dining room.
I have cut the grass.
You have trimmed the rose bushes
We have done all the chores
He has slept all day
Mr Byrne has taken out the trash
He has done his laundry
He has had an idea while doing his housechold chores
Mrs. Harvey has fixed many things around the house
She has cleaned the garage
Her son has watered all the plants
He has walked the dog
He has fed the dog and cats
Mr. Waites has cooked dinner for his family
His wife has set the table
His brother has opened a bottle of wine
His children has sat down at the table
Mr. Cave has done no work around the house today
Объяснение:
Present Perfect -> I/You/We/They + have + V 3d form
-> He/She/It + has + V 3rd form