Vinton G. Cerf founded the InterNetworking Group in 1972 and this has been since recognized as the birth-year of the Internet.
Đáp án B
Kiến thức về vị trí của trạng từ
Ta có:
- “Since” là trạng từ (mang nghĩa “kể từ lúc đó”), mà vị trí của trạng từ là đứng trước động từ thường và đứng sau động từ đặc biệt như tobe, động từ khuyết thiếu can/may/...
Tạm dịch: Victon G. Cerf đã sáng lập InterNetworking Group vào năm 1972 và kể từ đó năm ấy được công nhận như là năm ra đời của mạng Internet.
=> Đáp án là B (has been since → has since been)
Cấu trúc khác cần lưu ý:
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