Ответ
1.
1 — c, use a cell phone
2 — b, send a text message
3 — a, kick a ball
4 — e, shout
5 — f, laugh
6 — d, throw a ball
2.
1 b, 2 a, 3 c, 4 b
3.
1 shouldn’t
2 shouldn’t
3 shouldn’t
4 should
5 should
6 shouldn’t
4.
1 should be quiet
2 should use
3 shouldn’t touch
4 shouldn’t run and shout
5 should wash
5.
1 We should be quiet in the classroom.
2 We should be quiet in the library.
3 We shouldn’t shout in the restaurant.
4 We should help at home.
Ключ: should — «стоит/надо», shouldn’t — «не стоит/нельзя»; после них глагол без to.
