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. Air pollution became very serious in recent years due to human activity.
A B C D

Chọn một phương án bên dưới để kiểm tra đáp án ngay:
Đáp án chính thức: A
Hướng dẫn giải chi tiết
(AI giải đề cho tôi)
Câu: 'Air pollution became very serious in recent years due to human activity.' Cụm 'in recent years' yêu cầu thì hiện tại hoàn thành, nên 'became' (A) phải sửa thành 'has become'. Các phần B (serious), C (due to), D (activity) đều đúng ngữ pháp. Vậy phần cần sửa là A.
Câu hỏi này trích từ đề thi chính thức:

Đề Thi Tốt Nghiệp THPT Tiếng Anh 2024 - Đề 1

131 câu hỏi•Thời gian 60 phút•Chấm điểm & giải thích chi tiết
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