47. According to the passage, at what age can a person become qualified to join RSVP? (A) 24 (B) 37 (C) 49 (D) 56

43. Which of the following is the topic sentence of the third paragraph? (A) Computers are used in many other situations today. (B) At the supermarket, computers read the labels on products and work out the bills. (C) In the library, a computer can tell you , in a second, if a book is there. (D) Many schools use computers to teach students.