1a. make the statemens more polite. example: tou're not right. (think) - i don't think (that) you're right. 1. it wasn't an explosion. (think) 2. they weren't humans. (believe) 3. james hasn't got an alibi. (think) 4. scientists can't explain their disappearance. (believe)

1. I don't think it was an explosion. 
2. I believe they weren't humans. 
3. I think that James hasn't got an alibi. 
4. I believe that scientists can explain their disappearance. 

George W. Bush is the 43rd President of the United States. He was sworn into office on January 20, 2001, re-elected on November 2, 2004, and sworn in for a second term on January 20, 2005. Prior to his Presidency, President Bush served for 6 years as the 46th Governor of the State of Texas, where he earned a reputation for bipartisanship and as a compassionate conservative who shaped public policy based on the principles of limited government, personal responsibility, strong families, and local control.

President Bush was born on July 6, 1946, in New Haven, Connecticut, and grew up in Midland and Houston, Texas. He received a bachelor's degree in history from Yale University in 1968, and then served as an F-102 fighter pilot in the Texas Air National Guard. President Bush received a Master of Business Administration from Harvard Business School in 1975. Following graduation, he moved back to Midland and began a career in the energy business. After working on his father's successful 1988 Presidential campaign, President Bush assembled the group of partners who purchased the Texas Rangers baseball franchise in 1989. On November 8, 1994, President Bush was elected Governor of Texas. He became the first Governor in Texas history to be elected to consecutive 4-year terms when he was re-elected on November 3, 1998.

Since becoming President of the United States in 2001, President Bush has worked with the Congress to create an ownership society and build a future of security, prosperity, and opportunity for all Americans. He signed into law tax relief that helps workers keep more of their hard-earned money, as well as the most comprehensive education reforms in a generation, the No Child Left Behind Act of 2001. This legislation is ushering in a new era of accountability, flexibility, local control, and more choices for parents, affirming our Nation's fundamental belief in the promise of every child. President Bush has also worked to improve healthcare and modernize Medicare, providing the first-ever prescription drug benefit for seniors; increase homeownership, especially among minorities; conserve our environment; and increase military strength, pay, and benefits. Because President Bush believes the strength of America lies in the hearts and souls of our citizens, he has supported programs that encourage individuals to help their neighbors in need.

On the morning of September 11, 2001, terrorists attacked our Nation. Since then, President Bush has taken unprecedented steps to protect our homeland and create a world free from terror. He is grateful for the service and sacrifice of our brave men and women in uniform and their families. The President is confident that by helping build free and prosperous societies, our Nation and our friends and allies will succeed in making America more secure and the world more peaceful.

President Bush is married to Laura Welch Bush, a former teacher and librarian, and they have twin daughters, Barbara and Jenna.

Among all presidents in the history of the United States, Abraham Lincoln is probably the one that Americans remember best. He brought honesty and integrity to the White House. Most of all he is remembered or he is associated with the final abolition of slavery. Lincoln became a virtual symbol of the American Dream whereby an ordinary person from humble beginnings could reach the pinnacle of society as president of the country.
   Abraham was born on February 12,1809 in Kentucky, and spent the first seven years of his life there. Occasionally he and his sister Sarah attended classes in a log schoolhouse some 3 km from home.