1. Morse code is a system of electronic ____. 2. Morse code uses dots and ____. 3. Dots and dashes in Morse code represent letters and ____. 4. The symbols are arranged to spell out a coded ____. 5. Morse code travels through the ____. 6. Before Morse code, an important message could take ____ to reach its destination. 7. A lot of ____ were put all around the United States, to expand the telegraph and use the Morse code more. 8. ____, railroads and businesses used the telegraph to send news quickly. 9. The International Morse Code included extra ____ that are used in some European languages. 10. The telegraph ____ the symbols of Morse code into electrical signals.

Morse code - missing word

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