2000 câu trắc nghiệm tổng hợp Tiếng Anh 2025 có đáp án (Phần 36)

While the first puzzle was diamond-shaped, he later invented (7) _____________and vertical shaped puzzles; and Wynne (8)_____________ the use of adding blank black squares to a crossword puzz

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While the first puzzle was diamond-shaped, he later invented (7) _____________and vertical shaped puzzles; and Wynne (8)_____________ the use of adding blank black squares to a crossword puzzle.

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Giải thích

invented