1. To earn a living, Jenny worked hard from his essay. I have never copied the essay.

• The correct word is "hard," which means she put in a lot of effort.

1. My essay is much better.

• The word "better" is the correct choice to compare the quality of your essay with Jenny's.

Let's identify and correct the errors in the paragraph:

Original Paragraph:

Life in the city is changing day by day. City dwellers are getting much busier and busy. In the early morning or in the late afternoon when hundreds of people rush out of their homes to work or when they hurry up to come home from their work, the traffic is getting heavy and heavier. There are more and many traffic jams and accidents for rush hours. The air become more and more polluted with exhaust of many kinds of vehicles. But with the coming of night, the air is getting cool and fresher, the city is full with colorful lights, the city life is becoming more leisurely and more attractive.

Corrected Paragraph:

Life in the city is changing day by day. City dwellers are getting much busier and busier. In the early morning or late afternoon, when hundreds of people rush out of their homes to work or hurry to come home from work, the traffic is getting heavier and heavier. There are more and more traffic jams and accidents during rush hours. The air becomes more and more polluted with exhaust from many kinds of vehicles. But with the coming of night, the air is getting cooler and fresher; the city is full of colorful lights, and city life is becoming more leisurely and attractive.

1. "busy" should be "busier" to correctly use the comparative form.
2. "heavy and heavier" should be "heavier and heavier" for correct comparative structure.
3. "more and many" should be "more and more" to express the increasing frequency.
4. "become" should be "becomes" to match the subject in singular form.
5. "cool and fresher" should be "cooler and fresher" for correct comparative structure.
6. "full with" should be "full of" for correct usage.
7. "the city life" should be "city life" to avoid redundancy.
8. "for rush hours" should be "during rush hours" to indicate the time period correctly.
9. "hurry up to come home" should be "hurry to come home" to avoid unnecessary words.
10. "or in the late afternoon" should be "or late afternoon" to keep the parallel structure.