6. + 1. She _____ $500 on this skirt.
(a) pay (b) cost (c) spent
2. The book ______me $40.
(a) paid (b) cost (c) spent
3. It took me ten minutes _____to school.
(a) walk (b) walking (c) to walk
4. Lisa spent 30 minutes _______ to school.
(a) walk (b) walking (c) to walk