My sister's at university and I haven't seen her for ____. My parents have been married ____ 2009. I haven't done any homework since ____. I've had my new bike since ____. My father has worked as a doctor ____ 23 years. Juan has played the guitar since ____. Jenny has been my classmate since ____. I haven't eaten anything ____ this morning.

KET - Present Perfect for/since

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