MODULE 22- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

Not until 1911 ________ A. identified the first of the vitamins B. the first of the vitamins identified C. was the first of the vitamins identified D. the first of the vitamins was identi

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Not until 1911 ________

identified the first of the vitamins

the first of the vitamins identified

was the first of the vitamins identified

the first of the vitamins was identified

Giải thích

Chọn đáp án C