Question : Identify the segment in the sentence which contains a grammatical error. If there is no error, select 'No error'.
During the seventeenth century, there were great developments at the sphere of knowledge.
Option 1: During the seventeenth century
Option 2: there were great developments
Option 3: No error
Option 4: at the sphere of knowledge.
Correct Answer: at the sphere of knowledge.
Solution : The error lies in the fourth option .
The preposition "at" suggests a specific location or point, which doesn't fit the context of "sphere of knowledge". The correct preposition to indicate involvement or inclusion within a field or domain is "in".
Therefore, the correct sentence should be: During the seventeenth century, there were great developments in the sphere of knowledge.
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