Historical clue formulations

• Student's do-over — 2024-02-11
• Second-grade offering? — 2020-02-06
• Second chance in education? — 2009-12-05
• Opportunity to go beyond the first grade? — 2008-10-19
• Student's second chance — 2001-03-23
• Take back to the lab — 2000-02-03
• Double-check — 1999-11-19
• Lab verification — 1998-08-22
• Makeup — 1997-04-12
• Take back to the lab — 1997-02-15
• Examine again — 1994-06-30