It was not until the end of prehistoric times that the first

Câu hỏi :

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

A. until the end

B. prehistoric

C. the first

D. appearing

* Đáp án

D

* Hướng dẫn giải

Đáp án D

Kiến thức: It was not until...that S + thì quá khứ đơn

Appearing => appeared 

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