--Driving less, walking more is good for our health.--So I'd rather ______an hour's walk to work than consider ______a car.
When you get on a bus, the conductor will usually warn you ___ a thief.
It’s easy ___ because the bicycle needs ___ space.
If people obey the rules, there will be ___ traffic jams and accidents.
She is afraid of ___ out alone and she is also afraid ___ strangers.
Don’t worry. You’ll soon get used to ___ in the country.