INTERCHANGE INTRO - UNIT 6 SIMPLE PRESENT AFF / NEG
THEY - GO TO SCHOOL BY CAR / WALK TO SCHOOL
THEY DON'T GO TO SCHOOL BY CAR. THEY WALK TO SCHOOL.
HE - RIDE A HORSE / RIDE HIS BIKE
HE DOESN'T RIDE A HORSE. HE RIDES HIS BIKE.
HE - WORK IN AN OFFICE / WORK FROM HOME
HE DOESN'T WORK IN AN OFFICE. HE WORKS FROM HOME.