Single correct option
She has been teaching in this school ___ 2012.
- A. since
- B. for
- C. from
- D. by
Show answer and solution
Answer: (A) since
'Since' is used with a fixed point in time (2012) with the present perfect continuous. 'For' is used with a duration such as ten years. 'From' and 'by' do not fit the perfect tense. Prepositions are learnt in pairs with verbs and nouns, so revise common combinations rather than relying on guesswork during the examination.
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