150 câu trắc nghiệm Tìm lỗi sai nâng cao (P3)
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It was not when he talked to her that he knew the truth

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It was not when he talked to her that he knew the truth.

(A) Was not

(B) When

(C) Talked to

(D) Knew the truth

Giải thích

Đáp án B => until

cấu trúc it + be + not until + that mệnh đề: không....cho đến tận khi....