Vocabulary Prepositions - Giới Từ At - On - In phần 2

At 2 o'clock, at that moment, at that time, at present, at school, at home, at work, on Sunday, on March 27, on this occasion, on this opportunity, on this table, on this surface, in 1980, in February, in this week, in summer, in the 21st century, in Asia, in Asia, in Vietnam, in Vietnam, in a box, in a box.