Today the car is the most popular sort oftransportation in all of the United States.It hascompletely

1.[单选题]___

A.bringing

B.obtain

C.bought

D.purchasing

2.[单选题]___

A.months

B.years

C.family

D. year

3.[单选题]___

A.running

B.notice

C.influence

D.affect

4.[单选题]___

A.part

B.half

C.number

D.quality

5.[单选题]___

A.means

B. mean

C.types

D.kinds

6.[单选题]___

A.clearly

B.proportionally

C.percentage

D.suddenly

7.[单选题]___

A.famous

B.superior

C.fastest

D.better

8.[单选题]___

A.buy

B.sell

C.race

D.see

9.[单选题]___

A.unusual

B.smallest

C.average

D. biggest

10.[单选题]___

A.income

B.work

C.plans

D.debts

11.[单选题]___

A.denied

B.reproduced

C.replaced

D.ridiculed

12.[单选题]___

A.on

B.in

C.before

D. after

13.[单选题]___

A.quickly

B.regularly

C.rapidly

D.recently

14.[单选题]___

A.used

B.spent

C.cost

D. needed

15.[单选题]___

A.slower

B.equal

C.faster

D.less

16.[单选题]___

A.hardly

B.nearly

C.certainly

D.somehow

17.[单选题]___

A.personal

B.personnel

C.manual

D.artificial

18.[单选题]___

A.then

B.as

C.so

D.which

19.[单选题]___

A.to

B.in

C.of

D.for

20.[单选题]___

A.raising

B.making

C.reducing

D.improving