Where do fish live? They live 1where there is water.

填空题 How many kinds of fish are there in the world? 1.

填空题 How long does the biggest fish grow up to? 1.

填空题 What is the characteristic of a sea horse? It doesn' t 1.

填空题 What does a sea horse do when it wants to stay in one place? It takes hold of plants with 1.