1. We live and learn. 

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2. He who hesitates is lost.

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3. I can do it, and so can you.

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4．Smoking is prohibited in public places.

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5. If winter comes, can spring be far behind?   ______________________________________________________________________________

6. It has rained several days.

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7. She covered her face with her hand as if to protect her eyes.

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8. Neither party shall cancel the contract without sufficient cause or reason.

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