ESERCIZIO NUM: 1185 - CATEGORIA: verbi > frasi present-perfect - DIFFICOLTA': ****
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Completa le frasi coniugando il verbo tra parentesi al present perfect(02):

11. I’m tired because I ___ well lately. (not feel) // 12. _____ your problems? (your parents, always, understand) // 13. The patient ___ penicillin for several days now (take) // 14. A big earthquake ___ San Francisco since 1906. (not hit) // 15. They ____ in San Francisco since they arrived in the USA 20 years ago. (live) // 16. He got ill five weeks ago and ___ yet. (not recover) // 17. Everyone in the Middle East ___ about the situation for decades (worry). // 18. We ___ very cold weather this year (have) // 19. Where ___ the money? (you, hide) // 20. At last ,my favourite team ___ against its most important rival (win)