Choose the sentence that best combines each pair of sentences given.

Vietnamese wear Ao Dai on special occasions. It represents cultural identity.

The students joined the cultural exchange program in order to learn more about other traditions.

The students joined the cultural exchange program because they had already learned about other traditions.

The students joined the cultural exchange program, so they refused to learn more about other traditions.

The students joined the cultural exchange program, although they wanted to learn more about other traditions.

There was a rise by 30% in the rate of unemployment.

There was a rise of 30% in the rate of unemployment.

There was a rise to 30% in the rate of unemployment.

There was a rise up 30% in the rate of unemployment.

The availability of seasonal produce experienced a stable period.

The availability of seasonal produce is recorded leveling off.

The availability of seasonal produce hardly moved up and down.

The availability of seasonal produce went through a period of erratic.

People promote cultural exchanges because peace among nations is impossible.

People promote cultural exchanges unless they want to build peace among nations.

People promote cultural exchanges although they want to build peace among nations.

People promote cultural exchanges in order to build peace among nations.

Multicultural festivals are organized every year so that people celebrate cultural diversity.

People celebrate cultural diversity by organizing multicultural festivals every year.

Celebrating cultural diversity makes people organize multicultural festivals every year.

Unless people celebrate cultural diversity, they organize multicultural festivals every year.

Globalization connects cultures, and it also threatens cultural traditions.

Globalization neither connects cultures nor threatens cultural traditions.

Globalization connects cultures because it threatens cultural traditions.

Globalization threatens cultural traditions, but it cannot connect cultures.

Twice as many people were unemployed in 2005 compared to 2009.

Twice as many people were unemployed in 2009 than in 2005.

There were twice as many unemployed people in 2005 compared to 2009.

There were twice as many unemployed people in 2009 as in 2005.