Question: First settled by the Romans, it sits on a wide estuary created by the confluence of three rivers.
It is situated at the place where three rivers meet.

Answer: yes

Question: For most American companies today, success depends on selling more of your product next year than you did this year.
For most American companies success is dependent on selling more product than you did last year.

Answer: yes

Question: I decided that the department had acted illegally.
It was my opinion that the department was within the law.

Answer:
no