.............................................. Frank in Toronto?a) Did you meet b) Have you met c) Were you meetingHe had a break after he .....................................for two hours.a) was walking b) had been walking c) has walkedI ......................................... her for a long time.a) know b) have known c) have been knowing

a) Did you meet  Frank in Toronto?He had a break after he b) had been walking for two hours.I b) have known her for a long time.