Do these vocab sentences make sense?

Question

(adulterate) the supposedly organic vegetables had been adulterated with pesticides

(bereft) she was bereft after her house was destroyed by the tornado

(fortitude) the soldiers fortitude was what kept him fighting

(gibe) when the actor forgot his lines, the crow gibed him

If they dont make sense, please tell me why. Or maybe even give me a better sentence? Thanks.

And there'll probably be more of these questions from me later =-/

Answer 1

They all make enough sense for high school vocabulary homework.

For the third, I might prefer:

The soldiers had enough fortitude to keep fighting a battle they knew they couldn't win.

What you had, made sense.  But, it's better to write sentences where the context makes the meaning of the given word perfectly clear.

Answer 2

Your use isn't wrong, just awkward.  Suggestion...

How about, 'She was bereft of her house after the tornado.'

How about, 'The soldier fought with fortitude.'

How about, 'Looking at the resume, the interviewer tried to conceal his gibe.'