请听下面一段材料，回答第1至4题。 1. When did Sally give up her tennis dreams? [     ] A. After she enrolled in a college. B. After she entered Stanford University. C. After she spent three months practicing. 2. How many degrees did Sally earn in Stanford University? [     ] A. Two. B. Three. C. Four. 3. When did Sally apply to the space program? [     ] A. In 1970. B. In 1977. C. In 1978. 4. How many women were among the 35 people? [     ] A. Only one. B. Five. C. Six.