Seeing dinosaurs is diffuclt. First of all , they are extinct also meaning that they perished. Although you can still see their remains Second, dinosaurs are trouble. They are carnivorous. Third, you can't have conversations with them, considering the animal language is the hardest. In conclusion, seeing dinosours is diffuclt because they are extinct, they are trouble, and you cant have a conversation with them.
D: the schools garden
The prepositional phrase in the sentence would be “working in” and the object it modifies is the schools garden.
