Mark the letter A, B, C, or D on your answer sheet to indicate the cor

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.    

Donald Trump is_______ president of_______ United States.

• A. A. the/ an
• B. B. the/ the
• C. C. a / ∅
• D. D. the / ∅

Chỉ có 1 tổng thống Mỹ => đã xác định => dùng the
The United States = nước Mỹ
=> B