Заполните пропуски необходимыми глаголами. Обратите внимание на формирование времен группы Simple Passive.
1. The highest standards of safety worldwide (provide).
2. Last year some airlines because of non-effective safety standards (ban).
3. Safety policies in response to several last major shipping accidents (develop).
4. Safety of both passenger and merchant ships always paramount importance (give).
5. Vandalism and graffiti(prevent).