The sentence that contains a dangling modifier is:
"Forming an underwater city, the diver swam around for hours."
Explanation:
1. A dangling modifier is a phrase or clause that doesn't logically or grammatically modify any word in the sentence.
2. In the sentence provided, the phrase "Forming an underwater city" is the dangling modifier because it is unclear what or who is forming the underwater city. It seems to suggest that the diver is forming the city, which doesn't make sense in the context of the sentence.
3. To correct this, you could revise the sentence to clarify the connection between the subject and the modifier, for example: "The diver swam around for hours, forming an underwater city."
I hope this helps clarify which sentence contains a dangling modifier. If you have any more questions or need further assistance, feel free to ask!
