The question of why prehistoric animals became extinct has not been

12/80

Mark the letter on your answer sheet to indicate the word/phrase that is CLOSEST in meaning to the underlined part

The question of why prehistoric animals became extinct has not been conclusively answered.

predominantly

extensively

especially

decisively

Giải thích

Đáp án là D. conclusively = decisively : cuối cùng

Nghĩa các từ còn lại: predominantly : phần lớn là..; extensively: cách rộng rãi; especially : đặc biệt là ..