Answer:
That's good I would've put the same thing ngl 
 
        
                    
             
        
        
        
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. 
 
        
             
        
        
        
Hi,
If a speaker were preparing a speech for the city council the style they should go for would be formal, educational, serious, or an informative tone.