a/an: We use _______ to talk about a singular countable thing or person for the first time (a new topic) or to say that the person or thing is one of a number of things or people., We use _______ to talk about a person’s job., the: We use _______ when the person or thing has already been mentioned or when it is clear what or who we are talking about., We use _______ when there is only one of something., We use _______ before superlatives., zero article (no article): We use _______ when we talk about things in general or the general idea of something.,

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