in the sentence She invented the book wagon in the early 1900's. what is the prepositional phrase and word it modifies?

Using the websites I posted for you a few minutes ago, what do you think is the prepositional phrase? What word does it modify?

I think it is in the early 1900's and the word it modifies is wagon

You've correctly identified the prepositional phrase. However, since it tells WHEN, it's an adverb phrase and modifies the verb "invented."

Let's break down the sentence to identify the prepositional phrase and the word it modifies:

"She invented the book wagon in the early 1900's."

The prepositional phrase in this sentence is "in the early 1900's."

To identify the word it modifies, we need to ask: "What did she invent?"

The answer is "the book wagon."

Therefore, the prepositional phrase "in the early 1900's" modifies the noun "book wagon." It tells us when the book wagon was invented.