Difficulty: Easy
Correct Answer: had the sun risen
Explanation:
Given data
Concept/Approach
When "hardly" starts a clause referring to a completed past event, we use past perfect with inversion: Hardly had + subject + past participle … when + simple past.
Option analysis
B. "had the sun risen" → correct inverted past perfect. ✔A/C → wrong auxiliary/participle combination.D → no inversion; also mismatched with "hardly".E → original mixes present and past incorrectly.
Corrected sentence
"Hardly had the sun risen when the stars disappeared."
Common pitfalls
Using present tense after "hardly" in a past-time context.
Final Answer
had the sun risen
Discussion & Comments