Answer:
I don't know for sure so I am sorry if its wrong.
Explanation:
The preposition is "on". The prepositional phrase is "had spent many hours working on". And it modifies the word "their"
Again I think I am wrong so I am so sorry.
A Is the answer
FACT
Thats just how it works
Answer: Phone modifies number
I took the test it said it was right =) also reds sus
50 words
