Answer:
The sentence – “Stonehenge, a monument constructed four to five thousand years ago, is the most impressive attraction in Salisbury, England” is both a fact and an opinion.
Step-by-step explanation:
In this sentence, a fact about Stonehenge is given in the beginning. The fact is about the time it was constructed which is four to five thousand years ago. The second part of the sentence is more of a personal opinion/s. Someone or some people is/are stating it as the most impressive attraction in England. This opinion when added to the fact boosts the monument’s or the travel destination’s importance.