1)i play chess, because i know how to play 2) the teacher says we shut the window if you are cold 3) i learn two poems by heart,the literature 4) every pupil come to classes in time 5) you interrupt other people is conversation 6) we prompt at the lessons 7) she .. have been in the kitchen and didn't hear the call , or she have gone to the shops вставить модальные глаголы : )
2.may
3.have to learn
4must
5.can't
6can't
7.might...might