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grammar Focus
Change the underlined words into the past forms and then rewrite the
sentences.
1. Dinosaurs all have four limbs.
Dinosaurs all had four limbs.
2. These holes make their skulls lighter.
These holes made their skulls lighter.
Summary
Fill in the blanks with the correct words to summarize the story.
skulls laid limbs hatch developed
Dinosaurs all had four limbs . Their skulls
had large holes. All dinosaurs laid eggs.
Baby dinosaurs developed inside eggs until they were
ready to hatch .
17
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