Bike﹣sharing is a new choice for short journeys in cities．It is good to the 　　（56）development of the big cities．

    A 　　（57）by a company found that shared bikes started the nation's 　　（58）for bikes again．Now more and more Chinese people are 　　（59）bikes instead of cars to make short journeys in cities．

    An engineer of that company says that since the 　　（60）of shared bikes，people have made fewer trips by car．The love for shared bikes is not only among 　　（61）people，who were born in the 1980s and 1990s，but also among people over sixty．

    At weekends，the number of the riders in Shenzhen reaches the 　　（62）of all cities．On weekdays，the number of people who use shared bikes to travel to word is 　　（63）in Shanghai．

    It is said that bike﹣sharing will help 　　（64）the cities'environment．It not only helps solve the traffic problems，but also will help to make more use of 　　（65）in cities．Take Beijing as an example if more people choose shared bikes，an area of five Bird's Nest stadiums （体育场）will be saved．

56．A．slow	B．healthy	C．harmful	D．sudden
57．A．rule	B．plan	C．report	D．suggestion
58．A．search	B．worry	C．preparation	D．love
59．A．choosing	B．pushing	C．repairing	D．locking
60．A．end	B．start	C．control	D．fall
61．A．strong	B．weak	C．old	D．young
62．A．top	B．side	C．corner	D．line
63．A．coming over	B．putting off	C．going up	D．giving away
64．A．discover	B．separate	C．experience	D．improve
65．A．air	B．time	C．space	D．money