Why does the writer include the final sentence?
In one coastal district, a group of teachers replaced the long weekly homework sheet with a ten-minute task given every school day. After a term, the students in these classes remembered more of the material than students in nearby classes that kept the weekly sheet, and fewer tasks were handed in unfinished. The teachers believe that short, regular practice lets pupils review a topic before they forget it. They also admit that the trial covered a single subject in a single district, so they warn other schools against treating the result as a rule.
Answer and explanation
Correct answer: B. To show that the teachers recognise the limits of their own trial
- Step 1: The final sentence names the limits: one subject, one district. Step 2. Its purpose is to qualify the earlier claim. Answer: To show that the teachers recognise the limits of their trial. Why not the others: The sentence does not call for a new trial, reject the results or defend the weekly sheet.
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