Spelling crossword

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Across
  1. 2. One sided 2D shape (c)
  2. 4. Thinking about something (c)
  3. 7. opposite of easy (d)
  4. 8. To carry on (c)
Down
  1. 1. What adjectives do.... (d)
  2. 3. When you have finished something (c)
  3. 5. When you have two options you have to (D)
  4. 6. opposite of reappear (d)
  5. 7. opposite of same (d)
  6. 8. When you are really sure! (c)