Answer:
<em>thinking that A causes B because A always comes before B</em>
Explanation:
The pen(A) has been a constant thing (always there) before every positive speech (B), so the logical line that the writer follows, is that the pen has to be there in order for a correct speech to be given, even though no direct relation is implied or stated between the blue pen and a good speech.
Something necessary or indeipensable: food shelter, and other necessities of life. The fact of being necessary or indispensable; indispensability: the necessity of adequate housing.
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