Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 6)

The police are investigating the sudden ………………………………of the valuable painting.(appear)

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The police are investigating the sudden ………………………………of the valuable painting. (appear)

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Giải thích

The police are investigating the sudden disappearance of the valuable painting