Answer:
The correct answer is <u>D</u>: The children were roaming through the field without a care in the world.
Explanation:
In this example, a present participle is a part of the verb in past continuous tense. In the examples A and B, the present participle is used as a noun, while C uses it as an adjective.
In the last example, present participle is used as a verb in past continuous tense, preceded by the auxiliary verb "was".
The heat of the sun evaporates water by turning it into water vapor.
Google it, there's a lot of historical facts upon that
