Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 3)

About 200 million years before all the continents were part of one vast land mass called Pangea

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Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

About 200 million years before all the continents were part of one vast land mass called Pangea.

million

before

part

one vast land mass

Giải thích

Đáp án là B.

before => ago