Its when you dont add commas , periods etc..
example --- the kid went out and play with his friends and he also forgot to come home on time he got in trouble and he cant do anything.
there is many commas missing that is a run on.
The best answer is C) Heidi has piano lessons every Friday at 6 p.m.
Answer:
A. Securely
B. "...no way in the world can you get rid of the nasty hard thing..."
Explanation:
A. The word fast in this context means securely. For example, if I held my money fast it would mean that I clutched it tightly to make sure nothing could happen to it.
B. This quotation shows that the harness was held securely on the horse, since he couldn't get it off.
