No sooner had she put the telephone down than her boss rang back.

No sooner had she put the telephone down than her boss rang back.

A. As soon as her boss rang back, she put down the telephone. 

B. Scarcely had she put the telephone down when her boss rang back.

C. Hard she had hung up, she rang her boss immediately.

D. She had hardly put the telephone down without her boss rang back

Câu trả lời là: A là đáp án đúng