补全对话。 A: I'll miss you, Diana! B: Oh, I feel just the 1______! We must try to continue our friendship, even though we will no 2______ be at school together. A: Yes. I wish we weren't going to different senior high schools. I feel really sorry to have to say 3______ to you and all our other old friends. B: We'll make new friends, too, though! But let's promise to stay in 4______. We may not see each other so often, but we can get together in the summer vacation. A: Yes, that's a good 5______. And think of all the happy times we'll have then!