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Since when has he learnt Chinese? - Since he got to university we have been building this garage ourselves and hope to finish it within the next two mouths. We haven\'t finished cleaning the machines yet. Oh, You have had a shave! You look strange without a beard. I have been borrowing books from this library since we moved here she has been talking on the phone for half an hour now . Who is she talking to? He has collected stamps ever since he was a small boy I study hard of late. I\'ve got exams next week. I have learnt Spanish since last year.You look tired- Yes, I have been working non-stop all day.