Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
She had only just put the phone down when her boss rang back.
A. Hardly had she put the phone down when her boss rang back.
B. No sooner had she put the phone down when her boss rang back.
C. Hardly did she put the phone down when her boss rang back.
D. Hardly she had put the phone down when her boss rang back.