The pronoun "it" in paragraph 2 refers to__________

Câu hỏi :

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

A. genetic engineering

B. an accomplishment

C. hereditary mechanism

D. a reality

* Đáp án

* Hướng dẫn giải

Đáp án là A

Dựa vào câu trước: As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality.

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