1) She has been in Istanbul..........................five years. a) since b) for 2) They have worked here.....................1997. a) since b) for 3) It hasn't snowed.....................three hours. a) since b) for 4) I have called my husband twice...................I came here. a) since b) for 5) Her father hasn't taken pain killers......................three o'clock. a) since b) for 6) Katniss and Peeta have been married......................six months. a) since b) for 7) We haven't seen any sharks in the black sea.................2009. a) since b) for 8) He has lived in Paris.......................many years. a) since b) for 9) His daughter has changed her laptop four times......................last June. a) since b) for 10) They have created five new versions of the machine........................2004. a) since b) for

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