Final answer:
The word 'crude' is correctly used in sentences where it refers to unchanged minerals, a rough sketch, and offensive jokes.
Explanation:
The correct sentences using the word 'crude' as defined in the dictionary entry are:
- The miners found a small amount of crude minerals in the mine.
- The architect made a crude sketch of his designs for the clients.
- The audience booed the comedian off the stage due to his crude and inappropriate jokes.
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