Asentence must have more than one word. true false

True

Explanation:

A sentence should have more than one word then only it can be called as a sentence.

If the sentence contains only a word, then it is said to be called as a word itself.

A sentence for being a sentence must contain at least 3 things: a subject, verb and an object.

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sentence lenght varies according to word choice.you select which word to use and that will require to use other expressions that collocate with the word chosen.sentence length will vary   according to the choice of words you make to express your ideas.