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Birds _______in the trees. Squirrels(松鼠) live in the trees. But do you know that some frogs live in the trees, too?

The tree frog is hard(困难的) to find. This frog can _______colours. On green leaves, it stays green. On a brown branch(树枝), it turn _______. Some tree frogs can change from green _______gold or blue.

Tree frogs _______legs and white feet. They have sticky(黏的) pads at the end of their toes. These sticky toe pads keep the tree frogs from falling.

Tree frogs have different(不同的) _______and markings on their skin. Some frogs have green eyes, and some have gray _______. Some frogs’ eyes _______gold, and some are bright red.

They can male different sounds. One frog _______a sound like a dog barking. Another frog makes a loud noise like a snore(鼾声). There ________even a frog that whistles(口哨)!