Решение:
Образуем наречия от данных прилагательных и вставляем их в предложения.
- safe → safely
- sure → surely
- real → really
- bad → badly
- careful → carefully
- proper → properly
Теперь вставляем наречия в предложения:
- Read the leaflet carefully.
- I'm sorry I behaved so badly at your party last week.
- Have a nice trip and drive safely.
- Make sure the lights work properly.
- Do you really like living in a big city?
- I'm surely sorry for being late.
Ответ: carefully; badly; safely; properly; really; surely.