Complete each sentence with a linking verb : 1. Birds ........... the only animals vovered with feathers 2. There .......... about 9,000 types of birds on the planet. 3. The fastest bird ........ the write - throated spinetail swift . 4. Some scientists think birds and dinosaurs ......... members of the same family a long time ago . 5. One day the answer to this question...... clear
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1. Birds .......are.... the only animals vovered with feathers.
2. There .....is..... about 9,000 types of birds on the planet.
3. The fastest bird ...is..... the write - throated spinetail swift.
4. Some scientists think birds and dinosaurs ...are...... members of the same family a long time ago.
5. One day the answer to this question...will be... clear.
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