Choose the sentence which is grammatically correct: She used speaking in public.

گرامر کے لحاظ سے صحیح جملے کا انتخاب کریں

She used speaking in public.

She uses to speak in public.

She used to speak in public.

She was used to speak in public.

The phrase "used to" is correctly followed by the base form of the verb to describe a habitual action in the past.