need help asap!!!!! english

Answer/Explanation:
A sentence fragment is exactly as it says, a part of a sentence so some examples would be...
1. Will have many more. (Many more what? What is the subject?)
2. Before we go out. (What happens next?)
3. Closed the door. (Who closed it?)
4. Went outside (Again, who?
5. Because he lost his keys. (Why did he lose them and what happened because of it?)
Now we can correct them.
1. We will have many more pieces than the other school
2. We have to close the door before we go out.
3. Sara closed the door
4. David went outside to go play with the dog
5. We were late because he lost his keys
Hope this helps :)