Me piden resolver en presente perfecto?

Me piden resolver en presente perfecto. Alguien que me pueda ayudar por favor We ______________ there many times. 3. They ______________ on vacation. They should return next week. 4. You look tanned! ______________ you ______________ on holiday? 5. She’s not home right now. She ______________ shopping. 6. He knows the city well. He_____________ there many times. 7. She’s not here. She ______________ to the dentist. 8. They ______________ to the cinema. They won’t be back until later. 9. Peter isn't here. He has_________ shopping. 10. I've just ________to the supermarket. Look at all the food I've bought! 11. I've already ________ to the post office so you don't need to go. 12. My husband has _______ to Germany on a business trip.