1. In a questioning format 
2. With curiosity
   - curiously, inquisitively

See also: interrogative

• corrector
• Correggio
• Corregidor
• correlate
• correlated
• correlation
• correlation coefficient
• correlation matrix
• correlation table
• ireful
• Ireland
• Irelander
• Irena
• Irenaeus
• Irene Joliot-Curie
• irenic
• irenical
• Irenidae
• Iresine
• Iresine herbstii
• Iresine reticulata
• Iridaceae
• iridaceous
• iridaceous plant
• iridectomy