Passage 1 Tourism has become a very big (1)\_\_\_\__. For Spain, Italy and Greece it is the largest (2)\_\_\_\__ of foreign exchange, and (3)\_\_\_\__ for Britain, it is the fourth. Faced (4)\_\_\_\_
Passage 1Questions 1 to 5 are based on the following passage: As the National Park Service celebrate its 100th anniversary(周年纪念), President Barack Obama has announced the establishment of one new nat
Passage 1 People travel for a lot of reasons. Some tourists go to see battlefields or religious shrines. Others are looking for culture, or simply want to have their picture taken in front of famous