Some young people littered the park. It looks dirty now.

A. If some young people didn’t litter the park, it wouldn’t look dirty now.

B. If some young people hadn’t littered the park, it wouldn’t look dirty now.

C. If some young people hadn’t littered the park, it wouldn’t have looked dirty now.

D. If some young people had littered the park, it would look dirty now.

Đáp án
B. If some young people hadn’t littered the park, it wouldn’t look dirty now.

Câu hỏi thuộc Bài tập:

[017] - Bài tập Luyện thi Tiếng Anh THPT Quốc gia - Chuyên đề: CÂU ĐIỀU KIỆN (Bài tập 1)