In which sentence is the modifying phrase placed incorrectly?
1. Before she leaves for school, Anna needs to wash the dishes.
2. To accomplish her goal, Anna needs to wash the dishes, clean her room, and vacuum the living room rug.
3. If the dishes are not washed, Anna will not receive her weekly allowance.
4. Anna wants to buy new athletic shoes from her favorite store when she saves up enough money, Shoe Empire.