"I must have made a mistake in the calculations." Mr. Forest admitted __________________

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"I must have made a mistake in the calculations."

Mr. Forest admitted __________________

Mr. Forest admitted making a mistake in the calculations.

Mr. Forest admitted having made a mistake in the calculations.

Mr. Forest admitted to having made a mistake in the calculations.

Mr. Forest admitted to have been made a mistake in the calculations.

Giải thích

Đáp án đúng là: B

Giải thích: admit + V_ing: thừa nhận đã làm gì

Câu trực tiếp dùng “have made” => câu tường thuật: admitted having made

Dịch: Ông Forest đã thừa nhận đã mắc lỗi trong tính toán.