26. Had the contractor known that the materials used in the construction of the tower were faulty, he very likely

would have been held criminally liable for the tower's collapse.

여기서 ' the contractor'와 주절의 'he'가 동일 대상이면 종속절 'the contractor'은 생략되어야하는것이 아닌지 궁금합니다.

27. Should the reports of the company dumping toxic waste into the river prove to be true, the company ~  .

'the reports'가 prove와 수동의 관계로 생각해야하는것이 아닌지 궁금합니다.(prove -> be proved)