阅读理解。 On my first trip in the United States, I went to San Antonio. I was on foot. So I went to only three placesthere: the Alamo, the River Walk, and the Art Gallery. I especially enjoyed visiting the Alamo, a well- known building in America. When I arrived at the Alamo, I was deeply impressed because it was well kept and in good shape. The Alamo was erected in about 1722, was later used as a fort (保垒), and has been kept as a state monument (纪念馆) to the Texan War of Independence against Mexico. During the battle, all of the Texan defenders were killed. I was surprised at the exhibition of rifles, guns, cannons and swords. I was especially attracted by the paintings of a war. The paintings expressed the feelings of a painter verywell. Even though about 160 years have passed since the Battle of the Alamo, the exhibit is well kept. When I came out after seeing the exhibition, I felt as if I had a victory. The outer wall of the Alamo was destroyed here and there. When I touched the wall, I could feel the damage. After the war, little remained of the Alamo.All of the windows and doors were destroyed. The top part of the gate way disappeared without a trace (遗迹). I will remember the Alamo forever. It is one of the best places to visit in San Antonio. 1. It can be inferred according to the passage that the author may be a _____. A. writer B. Chinese C. European D. foreigner to Americans 2. The underlined word "erected" (in Paragraph2) means _____. A. found B. invented C. repaired D. built 3. People come to visit the Alamo now for _____. A. its height and shape B. its history and the story about it C. the exhibits in it D. its shape 4. Which of the following may be the best title for this passage? A. A Famous Building in America. B. My First Visit to America.C. The Texan War of Independence against Mexico. D. My Impressions of the Alamo in San Antonio, Texas.