1) We've been fishing . . . two hours. a) for b) since 2) I've been working in this office ... a month. a) for b) since 3) They've been living in France . . . 1970. a) for b) since 4) I've known that... a long time. a) for b) since 5) That man has been standing there ... six o'clock. a) for b) since 6) She has driven the same car ... 1975. a) for b) since 7) Things have changed ... I set up my own business. a) for b) since 8) The central heating has been on ... October. a) for b) since 9) That painting has been in the hall... a year. a) for b) since 10) He has been very busy... the last month. a) for b) since

for or since

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