阅读理解。 Mexico's neighbors are the United States on the north and Guatemala and Belize to the south. Mexico is about one quarter of the size of the United States. Mexico has more than ninety million people. The language of Mexico is Spanish. This makes Mexico the world's largest Spanish-speaking country. Mexico City is the capital and largest city of Mexico. The city is also very high. It is 7,349 feet high (2,240 meters). This makes it one of the highest capital cities in the world. The population (人口) of Mexico City grows bigger every day. About thirty million people live there. It has more people than any other city in the world, even more than Tokyo. Mexico also has its specialities (特点). Many of the foods we eat started in Mexico. Foods like beans, maize, avocados, tomatoes, peanuts, chili peppers, vanilla, and chocolate come from Mexico. Mexico is also famous for its cactus (仙人掌) plants. Mexico has more kinds of cactus than any other country. 1. Mexico is _____ the USA. A. on the south of B. on the north of C. a part of D. as large as 2. Mexicans speak_____ . A. English B. French C. Spanish D. Latin(拉丁语) 3. Which of the following is NOT true? A. Mexico City is the capital of Mexico. B. The population of Mexico City is 30,000,000. C. Tokyo is one of the cities with the largest population. D. Mexico City is the highest city in the world. 4. Tomatoes were originally (最初) grown in _____ . A. America B. Spain C. Tokyo D. Mexico 5. The best title (题目) of the passage is_____ . A. Mexico City B. Mexico's Plants C. Mexico D. Mexico's Population