Do you like bubble gum(泡泡糖)? Do you

Do you like bubble gum(泡泡糖)? Do you know when it was__41___?In the 1870s, an American discovered bubble gum. __42___ name was Thomas Adams. He wanted to find t he use for a chicle(一种树胶). Chicle is a Spanish__43___for sticky water(胶水)that comes from one kind of Mexican tree.Mr. Adams wanted to make rubber __44___chicle. He worked in his home while he tried to find a way to make the chicle become stronger. He had a son __45___ name was Horatio. He also helped his father now and then.One day, young Horatio began to chew(咀嚼) the chicle while he watched his father work. It did not ___46__ very good, but Horatio enjoyed chewing it. Then the young boy began to blow bu bbles with the new chicle which his father had made. Mr. Adams had discovered bubble gum __47___.Mr. Adams gave up trying to find a way to make rubber. ___48__ , he want ed to try to sell the new gum that he had made. He thought___49__ people might like the taste, too.He was__50___ . Soon, the new gum became more and more popular.