20 , нужно -

2.fill in the modal verbs: may, can, could, to be able to, must, had to, need, should
1. i come in?
2. you translate this text into english?
3. i take this book? certainly, but you not give it to anybody.
they spent all the morning on the river bank. only ann return home as she not stay
in the sun for such a long time.
5. it was sunday and we not (to go to school.
6. you not (to give) them any lunch. they can get coffee and sandwiches on the train.
7. my advice is: you take the medicine 3 times a day.
8. i am sure, you (to solve) this problem tomorrow.
9. why did not you tell her the truth? you (do) it.
10. students listen to the teacher at the lesson.