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23. What do the four tours have in common? A. Tourists will visit the Statue of Liberty. B. Fees for children will be discounted C. They hay ave guides to provide services. D. They are intended for foreign visitors I heard a story of a thousand marbles" from a friend David and I hope you can find it of use as well You see, Tom, I sat down one day and did a little arithmetic. The average person lives bout seventy-five years I multiplied 75 times 52 and I came up with 3900 which is the number of Saturdays that the average person has in their entire lifetime. It took me until I was fifty-five years old to think about all this in detail, he went on, and by that time I had lived through over twenty-eight hundred Saturdays. I got to think that if I lived to be seventy-five, I only had about a thousand of them left to enjoy So I went to a toy store and bought every single marble they had. I ended up having to visit three toy stores to round up 1000 marbles. I took them home and put them i