G4

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Across
  1. 3. communicate(交流） electronically on the computer
  2. 4. stay in one place
  3. 7. To have a PK with someone
  4. 8. involving or causing danger or risk
Down
  1. 1. Do more exercise to keep
  2. 2. an Australian animal
  3. 5. Children like it very much. They can watch on TV.
  4. 6. the past tense of find