I have never been to North America., I have been to Europe once., I haven't eaten anything all day., I haven't done my homework yet., I have already seen that film., She has been a doctor for a long time., He has been a lawyer for ages., She hasn't called me yet., He has never studied English before., My job has been stressful lately., I have worked very hard recently., Have you ever broken any part of your body?, Have you finished book 1 yet?, How long have you studied English?, How many times have you seen that film?, Has she met her friends recently?, Has he helped you with the housework lately?, Have you ever lost anything important?, What have you done these days?, Have you eaten too much these days?,

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