Statistics show that men have _____ as women do for every mile they drive.
People try to avoid public transportation delays by using their own cars, and this ____ creates further problems.
It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays.
The manager meant ____ the workers that being 5 minutes late meant ____ the company.
Great changes ______ in China in the past 20 years.
The question is ______ it is worth doing.