Gợi ý câu trả lời:
1. The first time I was in Vietnam was in 1977. Most people were farmers and they worked really hard on the farm. Twenty years later, when I came back, its economy had considerably changed. Agriculture accounted for 45%, whereas industry and service rapidly developed, with 40% of the total GDP. - Nancy from England-
2. In 1990, I went back Viet Nam after 30 yeats and to my surprise, the number of students studying abroad tripled. The country offered a more open policy in higher education, so more and more students chose to study in a foreign country. - Jack from Ireland-