ASEAN was established __________ the five original member countries, namely, Indonesia, Malaysia, Philippines, Singapore, and Thailand.Đoạn văn21/60II. LANGUAGE FOCUSa. Choose the one word or phrase - a, b, c or d - that best completes the sentences or has the closest meaning to the underlined word.ASEAN was established __________ the five original member countries, namely, Indonesia, Malaysia, Philippines, Singapore, and Thailand.withfromofbyGiải thíchĐáp án đúng là d