Вопрос по английскому языку:

Раскройте скобки
1. Management styles ___ (can/influence) by cultural factors.

2. A positive or negative working atmosphere ____ (may/create) by management style.

3. The employees _____ (can/demotivate) if they encounter a style of management that they have not experienced before.

4. Decisions _______ (often/make) at the highest levels in the hierarchy.

5. They ________ (have to replace/are replaced) the security provided by Theory X with a different structure of security and certainty.