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28. B (In the early 17th century, most of the southern region of Vietnam was nearly uninhabited and in the position of Ho Chi Minh City, there was a small village formed with a few residents./Officially named as Ho Chi Minh City, Saigon today has 22 districts in total and attracts hundreds of thousands of tourists annually.)
29. C (there was a small village formed with a few residents)
30. B (By the 19thcentury, this had become a cultural hub of the South as well as an important trading center of the country.)
31. D (Sadly, having been through various occurrences and two disastrous wars has stunted the city’s development.)
32. C sự cố