GRAHAM BELL DECIDED TO WORK ON A NEW MACHINE WHICH COU...

62. - File thứ 1: De va dap an thi thu lan 2, Anh 62. - File thứ 1: De va dap an thi thu lan 2, Anh
Tiếng Anh File thứ 1: De va dap an thi thu lan 2, Anh
62. Graham Bell decided to work on a new machine which could use electricity to send the human voice A B C 11 one place to other. D