The frog has a big belly. What does it look like?

Frog has a big belly, like what sentence:

1, the frog's belly is very big, bulging like a cotton.

This frog has a big belly like a big drum.

Frog has a big belly, like a skinned egg.

Frog has a big belly, like a small ball.

The frog has a big belly, like a big round duck egg.

6. The frog has a big belly, like a big balloon. ?

7. The frog has a big belly, like a ball.

8. The frog has a big belly, like a flower drum.

9. The frog has a big belly, like a big round watermelon.

10, the frog has a big belly, like a waist drum. Give it two sticks and you can knock and jump at the same time.