Although caffeine is a moderately habit-forming drug, coffee is not regarded as harmfully to

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Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

Although caffeine is a (A) moderately habit-forming drug, coffee is not (B) regarded as (C) harmfully to the average (D) healthy adult.

moderately habit-forming

regarded as

harmfully to

healthy

Giải thích

Đáp án : C

Harmfully to => harmful to : do cấu trúc “tobe regarded as + N/adj : được xem như là”