完形填空 （共20小题；每小题1分，满分20分）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Living one’s life is really like driving on a highway. First, to make a good driving, the driver must carefully examine the 1  of his car,  just as he cares for his health for a good life. Once he enters into the highway, he must 2  certain rules for his own safety. It also can be said that he must obey certain rules of 3  when living as a decent (体面的) adult. For example, on the highway, he is 4 to keep a constant speed which can be compared with his 5  activities through his life. Neither driving nor living must be taken at too 6  a speed nor at too slow a speed. If he drives too 7 , the police will give him a ticket, just as he will be arrested when he breaks the law. 8  too conservatively (保守的), he will be called an out-of-date person 9  the others driving at the proper speed. When he wants to change his lanes, he must give careful 10  to every direction of his car. It is sometimes 11  to change the way of life 12  he can be sure of completion by doing so. He 13  not make any unnecessary changing of lanes which gives him only danger. Finally, he must 14  where he is now by recognizing some 15  appearing now and then. If he takes the wrong way, he must return to the right as 16  as he can. But he may thus lose 17  and energy both on the road and in life.
18  the whole, driving on a highway and living one’s life are both hard work. 19  if he is careful and serious enough, 20  will provide him much pleasure.

A．seat B．condition C．petrol D．passenger

A．listen to B．find C．follow D．insist on

A．society B．school C．group D．highway

A．glad B．required C．made D．anxious

A．broken B．outdoor C．good D．continuous

A．large B．high C．limited D．expected

A．speedily B．slowly C．orderly D．willingly

A．Doing B．Acting C．Going D．Working

A．persuading B．getting C．interrupting D．refusing

A．notice B．attention C．signs D．regards

A．dangerous B．worthy C．unfit D．troublesome

A．if B．when C．unless D．because

A．dare B．need C．may D．should

A．think B．discover C．prove D．look

A．signs B．roads C．posters D．people

A．possible B．soon C．much D．hard

A．money B．luck C．time D．trust

A．In B．With C．About D．On

A．Therefore B．But C．And D．Then

A．it B．he C．they D．you