Please Help Put in articles where necessary 1 What is... difference between... opera and ...operetta? 2 English is ...global

1. What is the difference between opera and operetta? 2. English is a global language nowadays. 3. What interesting periodicals! 4.The Indian elephant is AN endangered animal. 5. Will the mystery of Loch Ness Monster be ever discovered? 6. Each child got a sweet. 7. Put on a clean shirt, Alec! 8. The Sun is shining so brightly but there are clouds in the sky. 9. - Where are the potatoes I bought yesterday? - I put them in the fridge. 10. Have you done the exercises yet, Mary?