Book3Unit 4 Warming Up& Reading (I)(16)

Later land animals appeared. Some were insects Others, called ___________, amphibians were able to ________.

live on land as well as in the water. When the plantsreptiles appeared for the first grew into forests, ________

dinosaurs developed, which became the time. Then _________most important animals on the earth for millions of

mammals became years. After they disappeared, _________more important.

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