Words which often hear or see everyday

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Across
  1. 4. an American photo and video-sharing social networking service owned by Facebook Inc.
  2. 6. a situation where people are not allowed to enter or leave premises
  3. 9. country with highest number of COVID-19 patients.
Down
  1. 1. a study material tool which we use everyday
  2. 2. #<word>
  3. 3. a state, period, or place of isolation in which people or animals that have arrived from elsewhere or been exposed to infectious or contagious disease are placed
  4. 5. an app adviced by the PM to download
  5. 7. a biological virus
  6. 8. North Korea