Possible Clues:

• "When will — learn?"
• 'When will — learn?!'
• 'Do ___!' (emphatic agreement)
• 'When will ___ learn?'
• 'Do ___!'
• 'How can -- thank you?'
• 'Will -- learn?!'
• 'Did ___ tell you about the time...'
• 'If ___ catch you ...!'
• 'How can -- repay you?'