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• Zoom the image with Ctrl+Mouse wheel up/down or the up/down arrows keys or by pinching with two fingers to zoom in or out.
  
• Use the toolbar or these keyboard shortcuts to add your answers: T = Select 'TEXT' tool; B = Select 'Brush' tool; L = Select 'Line' tool; Ctrl+Z = Undo last operation; Ctrl+Enter = Save text; Ctrl+S = Save current page.
  
• When you're ready with this page, go back and continue working on the other pages or generate a link to the filled worksheet.
  
• Your teacher will be able to correct your answersheet online and send it back to you!