Final answer:
One of my favorite inventions is the smartphone. It has revolutionized the way we communicate and access information.
Step-by-step explanation:
One of my favorite inventions is the smartphone. It has revolutionized the way we communicate and access information. A prepositional phrase that tells location would be 'on my desk', as that is where I keep my smartphone when I'm not using it. A prepositional phrase that tells time could be 'during the day', as that is when I typically use my smartphone the most.
A prepositional phrase that tells cause could be 'due to technological advancements', as the smartphone was made possible by advancements in technology. A coordinating conjunction could be 'and', as in the sentence 'The smartphone allows us to make calls and send messages'. A subordinating conjunction could be 'because', as in the sentence 'I use my smartphone because it has a lot of useful apps'. Finally, a conjunctive adverb could be 'however', as in the sentence 'I love using my smartphone; however, I try to limit my screen time'.
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