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The Vacuum That Knew Too Much: A Robot's Cozy Mystery
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High Upper Intermediate (B2 High) General Reading CEFR B2

The Vacuum That Knew Too Much: A Robot's Cozy Mystery

When Clara inherited her grandmother's rambling Victorian house, she expected dust, cobwebs, and perhaps a grumpy cat. What she did not expect was a squat, copper-plated robot named Barnaby who rolled...

Duration

5 min read

Length

520 words

Story

6 paragraphs

Story Excerpt

Sample preview reading passage

Paragraphs 1–2 of 6

When Clara inherited her grandmother's rambling Victorian house, she expected dust, cobwebs, and perhaps a grumpy cat. What she did not expect was a squat, copper-plated robot named Barnaby who rolled out of the pantry and offered her a cup of chamomile tea. Barnaby had been her grandmother's companion for decades, and he insisted on maintaining the household exactly as she had left it. Despite his cheerful demeanor, however, Clara noticed that Barnaby seemed unusually anxious, as if he were hiding something behind his polished metal face.

The mystery began to unfold on Clara's third night in the house. A priceless porcelain figurine—a shepherdess that had belonged to her grandmother—vanished from the mantelpiece. Barnaby claimed he had been recharging in the utility closet, but his battery indicator showed a full charge, which struck Clara as suspicious. She decided to investigate, and she started by examining the dust patterns on the floor, which revealed a trail of tiny wheel marks leading toward the attic. "Curious," she murmured, "very curious indeed."

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Educational Objectives

Story Details

Grammar focus and learning objectives covered in this story.

Grammar Level

B2 · Past Perfect, Passive Voice, Modal Verbs for Deduction

Learning Outcomes

  • Recognise and use the past perfect to sequence past events in a narrative.
  • Identify passive voice constructions and explain why they are used.
  • Use modal verbs like 'must have' to make deductions about past actions.
  • Infer character motivations and themes such as kindness from a story.

Grammar Focus

Past Perfect: had + past participle

Use the past perfect to describe an action that happened before another past action. It helps show the order of events in a story.

“ Barnaby had been her grandmother's companion for decades.
Tip: Use 'had' for all subjects (I, you, he, she, it, we, they) and add the past participle of the main verb.
Passive Voice: be + past participle

Use the passive voice when the focus is on the action or the receiver of the action, rather than the doer.

“ A priceless porcelain figurine—a shepherdess that had belonged to her grandmother—vanished from the mantelpiece.
Tip: Make sure the past participle agrees with the subject and use the correct form of 'be' (is, was, has been, etc.).
Modal Verbs for Deduction: must have + past participle

Use 'must have + past participle' to express a strong logical conclusion about a past event.

“ He must have been very careful.
Tip: This structure is used when you are almost certain something happened, based on evidence.

Reading tip

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