THE PRESENT PERFECT TENSE 213 from 3. hasn't, Tib, yet, the books, to the library, returned. k. ds, a 4. in the garden, already, the grass, my grandfather, cut, has. 5. have, this year, the students, French, studied. 6. this summer, we, in the sun, lain, haven't. 7. never, a bicycle, has, his little sister, rid- den. 8. been, have, to the museum, we, today. 9. has, this morning, cleaned, Jane, the windows.
Tib hasn't returned the books to the library yet.
My grandmother has already cut the grass in the garden.
The students have studied French this year.
We haven't lain in the sun this summer.
His little sister has never ridden a bicycle.
We have been to the museum today.
Jane has cleaned the windows this morning.
Объяснение: