Крокодил Гена привёз на строительство 275 л краски. Жёлтой краски было 96 л, а зелёной - на 38 л меньше, чем жёлтой. Сколько было литров краски других цветов?

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 если запланировал или I'll go, если только сейчас решил поехать

5.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.

1. work
2. came, was sleeping
3. walked, were discussing
4. am going
5. had cooked, invited
6. was taking, rang up
7. will be done
8. am looking through
9. was translating
10. would help
11. will have
В некоторых предложериях возможны и другие варианты. Но, думаю, и этого достаточно.