6 Passage Three Questions 23 to 25 are based on the passage you have just heard. 23.A) Advice on the purchase of cars. B) Information about the new green-fuel vehicles. C) Trends for the development of the motor car. D) Solutions to global fuel shortage. 24.A) Limited driving range. B) The short life of batteries. C) Huge recharging expense. D) The unaffordable high price. 25.A) They need to be further improved. B) They can easily switch to natural gas. C) They are more cost-effective than vehicles powered by solar energy. D) They can match conventional motor cars in performance and safety.