66. What would be the best title for the text.'? (A) The Making of Helios (B) 1999 American Tour de Sol (C) Sun-powered Cars on the Road (D) Use of Green Cars in Connecticut

72. What is the general idea of the text? (A) It' s safe to arrive late just when food is served (B) It' s wise to eat something before going to a party. (C) It' s important to follow social rules of party-going. (D) It' s necessary to read invitations carefully.