[单项选择]Without question, people's lives in China have improved dramatically in the past two decades.
A. Out of the question
B. No doubt
C. Naturally
D. Obviously

[单项选择]Without question, people's lives in China have improved dramatically in the past two decades.
A. Out of the question
B. No doubt
C. Naturally
D. Obviously

[单项选择]People appreciate to have worked with him because he has a good sense of humor.


A. to have worked
B. because
C. a good sense
D. humor

[单项选择]Many people prefer to have their tax forms completed by a professional rather than ______ it themselves.
A. doing
B. do
C. to do
D. did

[单项选择]

Some people think they have an answer to the problem of car crowding and pollution in large cities. Their (21) is the bicycle, or bike. In a great (22) cities, hundreds of people ride bicycles to work every day. In New York City, some bike riders have been formed a group (23) Bike for a Better City. They claim that if more people rode bicycles to work, there (24) be fewer cars in the downtown section (闹市区) of the city and (25) less dirty air from car engines. For several years this (26) has been trying to get the city government (27) bicycle riders. For (28) , they want the city to paint special lanes ( narrow, often winding roads or ways) for bicycle only on some of the main streets, because when bicycle riders must use the (29) lanes as cars, there may be (30) Bike for a Better City feels that if there were (31) lanes, more people would use bikes. But no bicycle lanes have been A. matters
B. events
C. incidents
D. accidents