Now let’s talk about Principle 1: 1* generic reference When referring to the kind of something with uncount nouns or plural count nouns, we don’t care about its amount or their number, in other words, we don’t want to know what hat we should put on it, so we use a zero article, for example: Theory must go hand in hand with practice . Power is the amount of work done in a given time. out of breath, take care of, set fire to, in ink Tigers are becoming almost extinct.
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