Resumptive and summative modifiers

Many different school systems are making a return to traditional education in the basics, an education focusing on hand-on experiences and interactive learning process.
Many different school systems are making a return to traditional education in the basics, a change will make our students a more interactive learning environment.
Many different school systems are making a return to traditional education in the basics, leading our education system to a new direction.

Within the preiod of the last few years or so, automobile manufacturers have been trying to meet new and more stringent quality control requirements, requirements are designed to protect the consumers from suffering a great damage in a car accident.
Within the preiod of the last few years or so, automobile manufacturers have been trying to meet new and more stringent quality control requirements, a challenge that few auto makers could successfully overcome.
Within the preiod of the last few years or so, automobile manufacturers have been trying to meet new and more stringent quality control requirements, lifting the car quality in America and improving the competition strength of these manufacturers.

The majority of young people in the world of today cannot even begin to have an understanding of the insecurity that a large number of older people had experienced during the Great Depression, insecurity about whether they can get enough sources or money to support their living when they are getting older.
The majority of young people in the world of today cannot even begin to have an understanding of the insecurity that a large number of older people had experienced during the Great Depression, a failure that will make these young people spend more than they have earned.
The majority of young people in the world of today cannot even begin to have an understanding of the insecurity that a large number of older people had experienced during the Great Depression, causing the economy system to a more dangerous situation.

The reasons for aging are a puzzle that has perplexed humanity for millennia, a puzzle that has been studied and investigated by lots of scholars for years.
The reasons for aging are a puzzle that has perplexed humanity for millennia, a mystery that is still under investigated by scientists.
The reasons for aging are a puzzle that has perplexed humanity for millennia, making people looking for more advanced technologies to prevent getting older or weaker.

The successful accomplishment of test-tube fertilization of embryos has raised many issues of an ethical nature that continue to trouble both scientists and laypeople, issues that might take many experts for years to resolve it.
The successful accomplishment of test-tube fertilization of embryos has raised many issues of an ethical nature that continue to trouble both scientists and laypeople, an event that not only caused a progress in bio-tech, but also caused a great debate on the humanity.
The successful accomplishment of test-tube fertilization of embryos has raised many issues of an ethical nature that continue to trouble both scientists and laypeople, giving people a new challenge on human right.

Many who lived during the Victorian era were appalled when Darwin put forth the suggestion that their ancestry might have included creatures such as apes, a theory that no one could imagine before that era.

In the period known to scholars and historians as the Renaissance, increases in affluence and stability in the area of political affairs had the consequence of allowing streams of thought of different kinds to merge and flow together, causing people in the Renaissance period to be open mindset and tolerance to different culture.

The field of journalism has to place its focus on that kind of news stories and events that at one time in our history were considered to be only gossip of a salacious and sexual nature, leading the society to an undesirable situation.

In his documentary Bowling for Columbine, Michael Moore has put the spotlight on the American penchant for violence, a documentary recorded his observation and point of view.

Al Gore has tirelessly urged world governments to develop policies in response to global warming, governments refuse to face the truth and prevent affecting the economy system.