1711.5 Complete the sentences with since or for. Then listen, check and repeat. ► I've known Ryan for three months. 1 Have you had that book eight? you were 2 We've been here 3 She's worked there 4 I haven't seen you 5 He's been ill five minutes. ten years. August. a long time. 2009. 6 She's played tennis 7 They've been very happy married. 8 You've lost weight they got last month.