Answer:
For the first time in history, more people live in cities than rural areas. Every year millions of people leave their homes in the countryside and migrate towards urban centres both within their own countries and across borders. Some of these people move simply to seek new opportunities and improve their lives.
Answer: A
Explanation:
So you don’t fail the grade
<span>When using the perfect tenses of verbs, it's necessary to add a helping verb, The answer is letter C. Helping verbs helps in conjunction to connect it with a mood or time of the verb. The examples of helping verb are </span><span>will, shall, may, might, can, could, and must.</span>
Adverb. An adverb is a word that describes an action. Since the action is walking, slowly is the word used to describe the action.