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Answer:
The children sailed paper boats before dinner.
Mothers call the children inside when dinner is ready.
She fell while she was playing and injured her knee.
Explanation:
Prepositional phrases are composed at least of a preposition and an object.
The word 'when' used as a conjunction means 'at the time that', and is followed by a subordinate clause.
The word 'while' is used to connect two events occurring at the same time, and is followed by a subordinate clause.
Dialogue reveals information about characters and helps move the story along. It can be very useful when developing characters and a plot.
This is from the book <span>Frankenstein, by Mary Shelley
Hope this helps!</span>