Answer: Helen is still sore from yesterday’s pilate class.
How did Helen get sore? From yesterday’s long Pilates class.
Before class, Matt begged his friends for a protractor.
When did Matt do his begging? Before class!
The book on the bathroom floor is swollen from shower steam.
Which book? The one on the bathroom floor!
Explanation: If you research prepostional phrase questions on safari there should be more examples!!
