Bộ 40 đề thi Tiếng Anh vào 10 có đáp án - Đề 6

They had decorated the tree with colored balls.

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They had decorated the tree with colored balls.

Colored balls had been decorated under the tree.

The tree had been decorated with colored balls.

They had decorated colored balls and the tree.

With colored balls the tree had looked beautiful.

Giải thích

Đáp án B