Let me decide on a specific story. A community clean-up project. The story can show characters organizing an event, encountering problems (like lack of volunteers, weather issues), and resolving them. This uses past tenses for events, and maybe some conditional for hypothetical problems.
Including specific vocabulary from the unit is important. If the unit's vocabulary is about problems/ solutions, environmental terms, or teamwork, the story should reflect that. Straightforward Intermediate Unit Test 3
Wait, the user said "useful story"—maybe they want it to serve as a listening or reading text followed by exercises. So the story should have enough detail to generate questions on vocabulary, grammar, and comprehension. Let me decide on a specific story