asleep a knock at the door awakened her．
A. Scarcely had she fallen than
B. No sooner did she fall; than
C. Hardly she had when when
D. Scarcely had she fallen; when
网友回答
A. Scarcely had she fallen than
B. No sooner did she fall; than
C. Hardly she had when when
(答案→)D. Scarcely had she fallen; when
解析：考查倒装。hardly(scarcely)…when … 或“no sooner…than… 结构表示“一……就……”。主句用主谓倒装结构。选D。