Definition:Sentence fragments are groups of words that look like sentences, but aren't.
Example:Which is why I cried.
This sentence could be corrected by removing "which is why." The sentence "I cried." is a complete sentence. I is the subject, cried is the action.The sentence could also be corrected by joining it with an independent clause. I was sad, which is why I cried.
Answer:
01. She read a book when the phone rang.
02. My son found a coin when he walked
03. She brushed her hair when the postman came.
04. When they arrived we waited for the bus.