A: Tell us what happened to you yesterday? B: I (walk) along Piccadilly when. I (realize) that a man with a black beard, whom I (see) three times already that afternoon, (follow) me. I (be) very annoyed, and at last I (stop) him and (ask) him why he (follow) me. The man (apologize)) and (tell) me he (mistake) me for one of his friends.