[quote=kohyoongliat;167122]The person in charge of the campaign is a Mr. Yong, a lean, tall, rather arrogant man.(=by Mr Yong)
What is the function of "a" in the sentence?
"A" is used to state what type of thing or person something or someone is
Ex: (from Cambridge dictionary) Experts think the painting may be a Picasso.(=by Picasso)
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