Нужна помощь с заданием, прикреплю фото

Проверить и исправить.

Во 2 не is, а was

B 3 - It is claimed that natural disasters are becoming....

B 4 - все парвильно, только will меняется на would

B 5 - It is expected that a big volcano would...

B 7 - heard меняется нна had heard

B 8 - It is said that one day ....