1) My sister has worked in London ... 2007 a) for b) since 2) Trevor has been in his room ... half past six. a) for b) since 3) We haven't seen Richard ... ten years. a) for b) since 4) The baby has been asleep ... hours. a) for b) since 5) Mrs Green has lived here ... many years. a) for b) since 6) Christine hasn't e-mailed me ... last week. a) for b) since 7) I haven't spoken to Eddie or Zac ... Monday. a) for b) since 8) Michael has been ill ... a week. a) for b) since

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