【单选题】

Sally Kristen Ride was born on May 26, 1951 in LosAngeles,Californi

A、At the (36) of ten,Dr. Ride began to play tennis and became an excellent tennis player. She (37) a tennis scholarship to Westlake School for (38) in LosAngeles.After her (39) , she enrolled in SwarthmoreCollege and (40) out to become a (41) tennis player. She worked hard (42) her tennis game, but after a few months decided she would (43) tennis. She enrolled at Stanford University.Dr. Ride had always been (44) in Math and Science and eventually (45) her doctorate degree in Physics.Dr. Ride saw an (46) in the Stanford University paper about NAS
A、 (47) for people to become astronauts. She applied (48) the space program. More than 8 000 people applied and thirty-five were (49) .Dr. Ride underwent extensive training (50) an astronaut and (51) the firstAmerican woman in space in 1983.Dr. Ride retired (52) NAS
A、in 1987 to (53) to Stanford University as a Physics Professor. She (54) to encourage young women to study math and science and is the (55) of several children’s books on space and space travel.
[A] author [B] seller[C] director [D] producer