The proverb, "The cure for boredom is curiosity; there is no cure for curiosity." means that you will never be bored if you are curious because curiosity can never be taken away.
Sorry, it's only one sentence!! It's a start, though, and maybe it could help you to write the other 4 sentences.
Answer:
May be D Signal phrases should provide name, job and source of every fact used in a text
Here I already facetune it.
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