MODULE 22- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

________ his terrible secret. A. Did they learn only later B. Only later they did learn C. Only later they learnt D. Only later did they learn

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________ his terrible secret.

Did they learn only later

Only later they did learn

Only later they learnt

Only later did they learn

Giải thích

Chọn đáp án D