help I was made to do this

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Across
  1. 1. you ______two times two
  2. 3. the study of life
  3. 5. shapes are called ______
  4. 6. a bike with one wheel is a ________
  5. 7. a person who is a king or queen
Down
  1. 2. a shape with three sides
  2. 4. one color