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.
Another angle: a personal experience where someone faces a challenge and learns a lesson. For example, a student who struggles with a school project, seeks help, and then succeeds. This can showcase past actions, sequential events, and maybe the present perfect if we are discussing current results of past actions. Straightforward Intermediate Unit Test 3
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. Wait, the user said "useful story"—maybe they want
Okay, putting it all together: A short story about a group of friends addressing a local environmental issue. Use past tenses, show their planning process, challenges encountered, and the positive outcome. Include dialogue to illustrate how to discuss solutions. That should cover the necessary aspects for an Intermediate test unit. For example, a student who struggles with a