Fun, Fun, Fun! (Croc and Ally) by Derek Anderson.
Croc is grumpy. Ally is happy. Croc sees a problem. Ally finds a solution. In Fun, Fun, Fun, the best friends overcome their differences as they go for a swim, shop for hats, and deal with a big bug.
With three short stories, easy-to-read vocabulary, and adorable illustrations, this book is perfect for progressing readers.