(i) After Rohan had finished his homework, he decided to go out. He left, then realised he had forgotten his keys.
(ii) By the time we reached, the train had already left, so we waited.
Class 7 English Poorvi Chapter 1 My Brother’s Great Invention solutions
Class 7 English Poorvi Unit III Dreams and Discoveries Chapter 1 My Brother’s Great Invention Question Answer
In (i), Rohan completed his homework (had finished) before deciding to walk (decided). He left, but then realised he had forgotten his keys—an earlier action. In (ii), we reached the station, but the train had already left—again showing sequence. We then waited for the next one. Past perfect is used for actions that happened earlier than the simple past actions.
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