Related Clues:

• Double positive?
• "For sure!"
• Enthusiastic affirmative
• 'How -- love thee?'
• "What ___ look like..."
• The Natl. Park Service is part of it
• 'I understand that!'
• Impatient agreement
• Exuberant assent
• 'No doubt!'
• Rhetorical question, possibly
• 'Where -- start?'
• "So ___"
• ''___ have to?''
• 'Where -- begin?'