They'__ riding b_ _ _ s
They're ....bikes
They're ri___ bikes
riding
They're dr___g cars
driving
dr_ _ _ _ g
driving
sl_ _ _ _g
sliding
They're dr_v_ _ g c_ _ s
driving cars
They're sl___
sliding
r_d_ng
riding
sl_d_ng
sliding
dr_v_ng
driving
T___'re sli_ _ _ _
They're sliding
r_ _ _ _ g
riding