1) I have worked for my uncle........... three months a) FOR b) SINCE c) WHEN d) WHILE 2) I was in the school .......... my mother called a) SINCE b) WHEN c) WHILE d) FOR 3) Mary was shopping ...........Richard was having a shower. a) WHEN b) SINCE c) WHILE d) FOR 4) We have been in this city .........2010. a) WHILE b) WHEN c) FOR d) SINCE 5) I have not smoked a cigarette ........... I met my wife. a) SINCE b) FOR c) WHILE d) WHEN 6) They have been living here .......... two years. a) WHILE b) FOR c) WHEN d) SINCE 7) You were studying .......... the show started. a) SINCE b) WHILE c) WHEN d) FOR 8) Kevin was listening to music ............ his sister was singing. a) FOR b) WHEN c) SINCE d) WHILE 9) It has been raining .......... two hours. a) FOR b) WHEN c) SINCE d) WHILE 10) I have not seen her ........... February. a) WHILE b) SINCE c) FOR d) WHEN

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