1) Someone told them a joke, they _____ since then. a) has been laughing b) have been laughing 2) How long _____ you _____ that newspaper? a) have / been reading b) have / read 3) She _____ the piano since she was 12. a) has played b) has been playing 4) My son _____ television for four hours. If he continues watching it, he'll certainly get a headche. a) has been watching b) has been watched 5) She _____ since 4 o'clock. a) has been waiting b) have been waiting 6) The dog _____ barking for twenty minutes. a) has been barking b) has barked

Present Perfect Continuous

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تضمين

لوحة الصدارة

النمط البصري

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