1) Giles hasn’t worked ... he lost his job in accounts. a) since b) for 2) Things have changed ... we did our research. a) since b) for 3) They’ve been in your office ... an hour. a) since b) for 4) We haven’t had a pay raise ... a while. a) since b) for 5) I’ve been here ... 9 am. a) since b) for

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