高职高专英语AB级补考题库1. _ the students in our class is 58. A. The number of B. A number of C. A lot of D. Lots of 2. These are important ways _ heart problems. A. to prevent B. preventing C. prevented D. prevent 3. Making preparations _ very important for _. A. is ; camping B. are; camping C. is ; camped D. are; camp 4. George Washington _ the Father of American history. A. is known to B. is known for C. is known as D. is known by 5. How muc