1.The students work at the library every week.2.When he came home,his daughter was sleeping. или (comes, is sleeping - если это происходит постоянно, всегда)3.When they are walking along the street,they are discussing their work.- или were walking, were discussing - если в прошлом.4.Tomorrow I am going to see my parents. - если запланировал или I'll go, если только сейчас решил поехать5.After he has (had) cooked the dinner he invites (invited) his children to eat.6.While she was taking a shower , somebody rang up.7.Tomorrow by 3 the work will be done.8. I am looking through a newspaper now.9.When he comes,his wife is translating a newspaper.10.Who helps me to do this translation ?11.In a year the students will have a practice.