1b
2c
3D
4a
5d
6a
7b
8a
9b
10d
Im a natural English speaker. It’s my first language. Hope I helped! Ps I can answer in comments.
Answer:bc were made of 70% water and were addicted to the internet
Explanation:
The preposition that is used in the given sentence above is the word "at", so the prepositional phrase is "at least once". Therefore, the words that are part of the prepositional phrase in this sentence are the words least and once. Hope this answers your question. Have a great day!