They left the concert hall. The fire alarm went off right afterwards.

35/50

They left the concert hall just as the fire alarm went off.

The fire alarm had gone off before they left the concert hall.

They were leaving the concert hall when the fire alarm went off.

No sooner had they left the concert hall than the fire alarm went off.

Giải thích

Tạm dịch :

Họ đã rời khỏi phòng hòa nhạc . Chuông báo cháy đã kêu ngay sau đó .

Giải thích :

Cấu trúc đảo ngữ : No sooner + had + S + P2+ O + than + S+ Ved+ O : ngay khi…thì…

Đáp án D