【題組】38. Why is Pluto NOT a planet ?(A) Most astronomers don’t like it. (B) It is not part of the
問題詳情
【題組】38. Why is Pluto NOT a planet ? (A) Most astronomers don’t like it. (B) It is not part of the solar system . (C) It does not move around the sun. (D) It is not big enough to be a planet .