Keep in mind that Web - browsing readers tend to have a shorter attention span than people who sit down with the intention of blocking off time for dedicated reading. (webdesignrelief.com)
A crate, exercise pen or an area blocked off by baby gates to keep the dog in when you are unable to supervise. (puppy-training-solutions.com)
Later, you can replay them in free play, where unlocked characters can access previously blocked off areas. (darkstation.com)