The use of a, an, or the is a signal that a noun is coming.
In the English language, only nouns are preceded by articles. A is used when a noun starts with a consonant (a book, a table, a bottle); an is used when the noun starts with a vowel (an apple, an umbrella, an avocado); the is used when you are referring to a particular thing (The boy I just met is called Mark.)
<span> The major closing was the banning of </span>theater<span> at the start of the English Civil War. On September 6, </span>1642<span>, by an act of Parliament, all </span>theaters<span> in England were </span>closed<span>.</span>
Are you asking what a hook sentence is or
Graham Greene, The Evening Redness In The West