Making nouns from verbs

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Across
  1. 1. Last night my neighbours were having a really loud ... (argue)
  2. 4. The concert I went to last week was a ... (disappoint)
  3. 7. Antivirus softaew offers computers ... from viruses. (protect)
  4. 8. Our children's ... is a huge responsibility.(educate)
  5. 9. We didn't receive any ... about why the flight had been cancelled. (inform)
  6. 10. Walking on the moon was one of the best ... of the twentieth century. (achieve)
Down
  1. 2. I spent three weeks doing ... for my final exams. (revise)
  2. 3. Thanks to Sarah for your great ... (organize)
  3. 5. We made the ... to sell our car and use public transport instead. (decide)
  4. 6. There was a lot of ... because the lesson was very difficult. (confuse)