Something happening at or around the time of speaking: It's clear they are having the time of their lives., His understanding of the dog is growing day by day., This week we're looking at animal friendships., Something permanent or unchanging, including habits, facts and routines: Suryia lives with his keepers., Most dogs avoid apes., Each day the dog comes into the compound., Something past that impacts the present or started in the past and continues in the present: The story of Suryia has attracted a lot of interest., They have recognized a basic social need in each other., They have been doing this every day since they first met.,

Life Upper-Intermediate, Unit 1, Grammar

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