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.

He has been very interested in doing research on _______ since he was at high school.

• A. A. biologically
• B. B. biological
• C. C. biologist
• D. D. biology

A. biologically (adv) về mặt sinh học
B. biological (adj) thuộc về sinh học
C. biologist (n) nhà sinh học
D. biology (n) sinh học
Sau giới từ là danh từ => chọn D