No sooner _____ they rushed out into the street.
A. did they hear the news than B. had they heard the news than
C. did they hear the news when D. had they heard the news when
No sooner _____ they rushed out into the street.
A. did they hear the news than B. had they heard the news than
C. did they hear the news when D. had they heard the news when
B
no sooner ...than引导的从句位于句首，从句要部分倒装，而且是完成时态。