________ , I went downstairs to see what happened. A. Heard some strange noise B. Hearing some strange noise C. When heard some strange noise D. As to hear some strange noise

________ , I went downstairs to see what happened.

A. Heard some strange noise      
B. Hearing some strange noise
C. When heard some strange noise  
D. As to hear some strange noise

Trả lời

Chọn đáp án B

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