Найдите радиус окружности если длина равна 8 см

Используйте глаголы в скобках в Passive Voice (Present, Past, Future Simple).

1.  The Hermitage (to visit) ______ by thousands of people every year.       

2.  Economic problems (to solve) _____ in the nearest future.  

3.  Many drug-related crimes (to commit) _______ nowadays by juveniles.

4.  St. Petersburg (to found) _____ by Peter the Great as the “Window to Europe”.