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.

Question 20. Mr. Pike is certainly a _____ writer, he has written quite a few books this year. 

• A. prolific
• B. fruitful
• C. fertile
• D. successful

- prolific (adj): sáng tác nhiều

- fruitful (adj): hiệu quả, có kết quả

- fertile (adj): màu mỡ

- successful (adj): thành công