I went to the vegetable market to help his mother buy food, to see someone selling frogs.We all know that the frog is a beneficial insect which can eat insects,it is the crops helper, we should protect the frogs and should not eat them,.And we should protect more animals and to protect the environment.In this way, we can live a happy life.行不行? I went to the vegetable market to help his mother buy food, to see someone selling frogs.We all know that the frog is a beneficial insect which can eat insects,it is the crops helper, we should protect the frogs and should not eat them,.And we should protect more animals and to protect the environment.In this way, we can live a happy life.行不行?