Trắc nghiệm tổng hợp Tiếng anh có đáp án 2023 (Phần 21)

The word “they” in line 22 refers to A. rocks B. shores C. oceans D. specimens

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The word “they” in line 22 refers to

rocks

shores

oceans

specimens

Giải thích

Lời giải:

Đáp án: D

7. Thông tin: In manyinstances the specimens are less than one-tenth of a millimeter in diameter.Althoughthey were entombed in the rocks for hundreds of millions of years, many of the fossilsconsist of the organic remains of the organism.