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.    

The decision regarding the merger of the two companies ...... to the public yesterday.

• A. A. was announced
• B. B. announced
• C. C. were announced
• D. D. announcing

Chủ ngữ̃ chính là The decision => động từ chia ở số ít
=> A