The Wizard used tricks to fool Dorothy and her friends.
The answer is c my friend :)))()()
you must think about how you can apply your knowledge to every day life
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I'm not sure who you are talking about or in what context "one way street" is used, but as it is usually used for is for explaining or describing a person or what have you to be straight, practical, black and white, no room for a "change in direction" you might say. i hope this helps... sorry that it's 3 hours late XD