单选题 Mexico's neighbors are the United States to 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 feel high (2,240 meters). This makes it one of the highest capital cities in the world. The population of Mexico City grows bigger every lay. 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 specialties. 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.

单选题 Mexico is ______ Belize.

单选题 Mexicans speak ______.

单选题 Which of the following is true?

单选题 Peanuts were first grown in ______.

单选题 The best title (题目) of the passage is ______.