Answer:
by the words that are used if it is a simple sentence that will have a noun a verb and an adjectives if it is complex compound or compound-complex it will have more than a verb noun and adjectives will have more like a proper noun and stuff like that
Base on the question where as asking to complete the passage and base on my research and further investigation, One of the way to develop a main idea for the advertisement is to conduct product research. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification
Listen to their viewpoint and after give feedback on your opinion (respectfully of course)
Under is a "preposition".
This is correct because "under" is used to show the location of the action happening, which means that it is a preposition.
