People think that Alexander Fleming discovered penicillin in 1928.

46/50

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

It was thought that Alexander Fleming discovered penicillin in 1928.

Alexander Fleming was thought to have discovered penicillin in 1928.

Penicillin is thought to have been discovered by Alexander Fleming in 1928.

Alexander Fleming discovered penicillin in 1928 is thought.

Giải thích

Đáp án C.
Cấu trúc bị động hai mệnh đề (bị động kép):
People think that + S+ V (quá khứ đơn) = S + to be + thought to have + PII
Dịch: Mọi người nghĩ rằng Alexander Fleming đã khám phá ra Penicillin vào nám 1928.
= C. Penicillin được cho là đã được Alexander Fleming phát hiện vào năm 1928.