Correct option is D
·
Correct answer: (d) No error
·
Grammatical Rule:
Past Simple Tense Usage
· The sentence
correctly follows the
past simple tense ("left," "was") to describe a completed past action.
·
Correct sentence: When she left the house at 10 o’clock, her daughter was still at home.
·
Example Sentence: When I
arrived at the airport, my flight
had already departed.