你看过电影《大白鲨》吗？它讲的是一条吃人的鲨鱼。

Have you seen the movie 'Jaws'? It's about a man-eating ___shark.

导游警告我们那片海洋里有很多鲨鱼。

The guide warned us that the ocean was full of ___sharks.

浮潜时，我看到一条鲨鱼在珊瑚礁附近游动。

While snorkeling, I saw a ___shark swimming near the coral reef.