Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

Câu hỏi

Ozone has his origin in a number of sources, a prime one being the automobile engine.

A. his

B. prime

C. being

D. the

Đáp án
A. his

Câu hỏi thuộc Bài tập:

Đề thi thử tiếng Anh THPT Quốc gia 2023 (Mã đề 012)