The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
They were / interested / on / learning new languages.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. on.
Error is related to / concept: Incorrect preposition.
What is wrong: 'Interested on' is wrong; the correct phrase is 'interested in.'
Grammatical concept: Certain adjectives require fixed prepositions; 'interested' takes 'in.'
Correction: Replace 'on' with 'in.'
Final sentence: They were interested in learning new languages.