1. It gets dark very quickly after sunset. | 
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2. After 5:00 a lot of people head home from work. | 
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3. Cemeteries get a lot of new visitors after a war. | |
4. Human beings started to learn how to make many new tools after prehistoric times. | |
5. They decided to remain on good terms after their divorce. | |
6. Strawberries in Minnesota become ripe after the middle of June. | 
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7. Lucinda and Gary got something to eat after a walk in the park. | |
The word “after” is also used as a subordinating conjunction in an adverb clause. |