Answer:
There were a plethora of superfluous questions that he intended to use on the ostentatious government.
Step-by-step explanation:
The words ostentatious, plethora, and superfluous are used to talk about things that are done over the top, extravagant, excessive, etc. But despite their differences, they also have some similarities in their use.
"Ostentatious" means pretentious, flashy, showy, extravagant.
"Plethora" means extra, exceeding, excessive.
"Superfluous" means excess, unnecessary, extra, unwanted.
As we can see above, the three words are related in their word meanings, which in general, is excessive, or extra, unnecessary.
One sentence with the three words used together will be
There were a plethora of superfluous questions that he intended to use on the ostentatious government.