A.people often walked 25 miles a day |
B.People usually went around on foot. |
C.People used to climb the Statue of Liberty. |
D.people considered a ten-hour walk as a hardship. |
A.middle-aged people like getting back to nature |
B.people need regular exercise to keep fit |
C.walking in nature helps enrich one’s mind |
D.going on foot prevents heart disease |
A.A ray of traffic light | B.A queue of cars |
C.A flash of lightning | D.A stream of people |
A.To encourage people to return to walking. |
B.To recommend people to give up driving |
C.To advise people to do outdoor activities. |
D.To tell people to reflect more on life. |