To understand the changes that occurred in Los Angeles while Ann was away in London for two years, we can identify the transformations based on the provided options:
A new school had appeared near her house.
- This means that a new educational institution was established in close proximity to Ann's residence.
Her cousins had grown up.
- It indicates that during her absence, Ann's cousins had matured and become older.
The roads had become wider.
- This suggests that the road infrastructure in Los Angeles had been expanded to make the roads broader.
The streets had become cleaner.
- This implies that efforts had been made to improve the cleanliness of the streets in the city.
The shops had got more modern.
- This indicates that the retail establishments in Los Angeles had upgraded and modernized over the two years.
A lot of Japanese cars had appeared.
- This points out the increased presence of Japanese automobiles in the city during Ann's absence.
In summary, the changes in Los Angeles while Ann was in London for two years include the emergence of a new school near her house, the growth of her cousins, the widening of roads, the improved cleanliness of streets, the modernization of shops, and the increased number of Japanese cars in the city. These transformations reflect the progress and developments that took place in various aspects of the urban environment during Ann's time away.