On utilise une règle pour

The sentence On utilise une regle pour ___ means "A ruler is used for ___." This question tests knowledge of school supplies and their functions.

A regle (ruler) is a flat, straight tool marked with units of measurement. Its primary function is to mesurer (measure) - to determine lengths, draw straight lines, and mark distances.

The other options describe actions associated with different tools:

• effacer (to erase) is the function of une gomme (an eraser)
• peindre (to paint) is done with un pinceau (a paintbrush)
• couper (to cut) is done with des ciseaux (scissors) or un couteau (a knife)

The complete sentence is: On utilise une regle pour mesurer - A ruler is used for measuring.