We students must c____ on what whe have studied The old man and woman often c_____ under the treeWe students must c____ on what whe have studied.The old man and woman often c_____ under the tree,they talk about their cats.

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We students must c____ on what whe have studied The old man and woman often c_____ under the tree
We students must c____ on what whe have studied.
The old man and woman often c_____ under the tree,they talk about their cats.

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