42. According to the passage, a gondola is likely to be________ . (A) a small engine (B) the pilot of the blimp (C) a passenger cabin (D) the airbag of the blimp

43. Which of the following is NOT true according to the passage? (A) The shape of a blimp is supported by a metal frame. (B) Only the ground crew is needed to make a blimp fly. (C) A blimp needs a small engine to decide its direction. (D) Helium makes it possible for a blimp to rise.