One of the essential characteristics that must be taken into consideration when choosing a research topic is that it must not be too broad, and it should be narrowed as much as possible in order to be more specific to the subjects themselves. Therefore, the answer would be "<span>Record labels first rose to prominence in the mid-twentieth century and became the largest player in the music business; today, they have less importance in the industry."</span>
30. Half of 10 is 5 and half of 30 is 15
The correct option is B) “She had rested on the rock”. Helping verbs are verbs that help the main verb with its meaning and they also set the time of the verb. In this case, the helping verb “had” is helping the main verb “rested”. The auxiliary verb “had” is also setting the verb tense of the sentence, which is past perfect.
The other examples “paddled”, “went” and “swam” are action verbs that do not need a helping verb to extend or add meaning.
