C.I.S Christmas Crossword

Edit Answers
123456
Across
  1. 4. C.I.S symbol
  2. 6. A Christmas tradition involving singing
Down
  1. 1. The main language
  2. 2. Event held every December at C.I.S
  3. 3. The address of C.I.S
  4. 5. The most popular subject involving numerals