Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 1)

I am sorry I didn’t succeed in finding the solution. If only …………………..

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I am sorry I didn’t succeed in finding the solution

->If only …………………..

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Giải thích

I am sorry I didn’t succeed in finding the solution.

->If only I had succeeded in finding the solution.