題組B  Both great white sharks and tigers (  6  ) to be dangerous animals, but they are also two of the most endangered species. Because some people like to have shark fin soup, so (  7  ) great white sharks are killed each year. (  8  ) tigers, they are killed cause some people think their bones can cure some diseases. However, no scientific proof shows their bones can cure anything.   It’s shocking to know (  9  ) there aren’t many of them left in the world. If we stop buying, there will be less killing. (  10  )  ＊endangered species瀕臨絕種的物種 fin 鰭 cause 起因 cure 治療 disease 疾病 proof 證明 wild 野外 protect 保護
【題組】6.
(A) believe
(B) are believed
(C) have believed
(D) were being believed