Hello! Sorry this is a little late, but hopefully it can help others who visit this question.
I believe the best answer to your question would be option four, determination.
For those who have the same question, but have different answer options, another correct to this question would be resolve.
I can confirm these answers are 100% correct.
Hope this helps, and have a great rest of your day! :)
Answer:
We have done all the activities very well
I intently thought of going to the gym
I honestly replied to the old man
He was badly beaten because of theft
The author of "the lady, or the tiger?" tells us that the door selected by the young man contains the _____.
The answer is "He doesn't tell us."
~Hope it helps~ :)
The first word in the sentence is a pronoun- not an adjective.
The second option - Australian is in fact an adjective, it gives some information about the terrier.
the second option - children - is a noun, so it is not an adjective.
And the last option is a verb,
So the correct answer is B - this is the only adjective.