At present,lots of people would rather________in the country because there is________pollution in the city.
—____ can you finish this English exam? —In about one and a half hours.
—________ does it take you to walk to school? —About 20 minutes.
—Do you go there by bike ________ by bus? —By bike.
What do you ________ the workers in the factory?
—________ do you usually go to school,Simon? —By bike.