Question

5. Paul his car _____________ yesterday. *
a) cleaned
b) has cleaned

6. I _________ my phone last Sunday. *
lost
have lost

7. What _________ last weekend? *
did you do
have you done

8. _______ you in Spain last summer? *
Were
Have you been

9. We _________ to Spain twice. *
were
have been

10. Cervantes _________ ' Don Quixote'. *
wrote
have writen​

Answer 1

vamos dizer que, basicamente, a gnt usa o present perfect (o que tem have ) quando nao especificamos when(quando)

por exemplo:

paul cleaned his car yesterday

(perceba q aq eu específico o quando, that was yesterday)

paul has cleaned his car

(ja aq eu n especifico o quando, só falo q o Paul limpou o carro, n falo qnd. Portanto usamos o present perfect nessa situação)

RESPOSTAS:

5. cleaned (isso pq ele especifica o quando)

6. lost

7. did u do

8.were

9.have been (nao especifica o quando)

10.have writen