The correct answer for the question that is being presented above is this one: "all of the above." Non-restrictive clause is always set off by one of more commas. If you take a non-restrictive clause out of a sentence, the basic meaning of the sentence stays the same. <span>A non-restrictive clause is an incidental description thrown into the sentence.</span>
Since the instructions say use the last simple negative form, these are the answers:
1. David did not watch
2. Carol did not appear
3. did not book
4. did not close
5. did not follow
6. did not disappear
7. did not wait
8. did not recognize
9. did not identify
10. did not apologize
11. did not like
12. did not admit
A or D, defanitly not B or C.
Most Likely A.
Answer:
I believe the answer is C.