Упражнение 1. Вставьте have to или don’t have to.
1. Shop assistants ____________know Italian
2. Doctors ____________ work with people,
3. Architects .____________ work at night
4. Businessmen ____________ think much.
5. Pilots ____________wear uniform
6. Teachers ____________travel.
7 Diplomats ____________know English.
8. Secretaries ____________ get up early.
9. Bus drivers____________write letters.
10. Bankers ____________ count money