Please capitalize where necessary: immerse yourselves in lucca's historic center, walk along the small streets enclosed by the fascinating city walls, discover the medieval buildings along the side of the street and, a short distance away from the duomo of san martino, stay in one of the apartments of "b&b il seminario".
A: Immerse yourselves in Lucca's historic center, walk along the small streets enclosed by the fascinating city walls, discover the medieval buildings along the side of the street and, a short distance away from the Duomo of San Martino, stay in one of the apartments of "B&B Il Seminario".

Q: to see all photos with kitty, click here

A: To see all photos with Kitty, Click here

Q: individuals with surname sulzberger
A: Individuals with surname SULZBERGER

Problem: only if a number of unfavourable circumstances coincide, the total environmental exposure will be able to reach or exceed the level of acceptable daily intake. however, possible exposure in the working environment is not included in this assessment.
Can you repeat this sentence, but capitalize it?
Answer: Only if a number of unfavourable circumstances coincide, the total environmental exposure will be able to reach or exceed the level of acceptable daily intake. However, possible exposure in the working environment is not included in this assessment.

Text: how could the same god, who had given his people the ten commandments, including the sixth, which forbids murder, order the indiscriminate extermination of whole nations?

Correct capitalization: How could the same God, who had given his people The Ten Commandments, including the Sixth, which forbids murder, order the indiscriminate extermination of whole nations?

Text: 6. guest reviews - we feature one of most intuitive online review systems for guests.

Correct capitalization:
6. Guest Reviews - We feature one of most intuitive online review systems for guests.