2.It's hard to keep up contact!
Frank: I just received a letter from one of my old high school buddies.
Sarah: That's nice!
Frank: Well, actually I haven't heard from him in ages.
Sarah: To be frank with you, I've been out of touch with most of my old friends. Only one or two still keep me posted about what they are doing.
Frank: I know. It's really hard to maintain contact when people move around so much.
Sarah: That's right. People just drift apart! But you're lucky to be back in touch with your buddy again.