Pasado Participio

I. completa cada oracion con la forma correcta del PASADO PARTICIPIO del ejercicio. 1. has ali visited the doctor yet? 2. dr. smith has worked at this hospital for ten years. 3. she's an old friend. i have know her for fifteen yeras. 4. we have been sick all week. 5. has gloria waited long for the doctor to arrive? 6. peter has caught a cold since december. 7. have you seen your sister in the hospital? 8. has she eaten any food today? 9. i'm sorry, but the doctor has left the hospital. 10. you have ground three inches this year.