听力原文：W: Bob, you weren't at home last Saturday, were you? I tried to call you. M: Oh, that's right, I went shopping, I suppose you phoned me in the morning, didn't you? W: Yes, it was late in the morning when I phoned. M: Yes, Carolyn, I was out shopping. Why did you phone me,? W: I wanted to ask if you'd like to come to dinner on Sunday. M: Oh, what a pity! I wish I had come bur—actually, I were on a river trip practically the whole day Sunday. W: How was the trip? M: Very worthwhile. By the way, how did rite dinner party go? W: Well, we had a wonderful time. I thought you might have enjoyed it too ff you had come. Tom Welsh and his wife were with us. You've met them before, haven' t you? M: Tom Welsh, yes, I rather liked him. W: And we had a lovely dinner with green cabbage, cucumber soup and fresh salad. M: Very nice. W: And they asked about you. M: And how're they getting on? W: Oh, very well. They enjoyed the party very much. M: Ah, good. (20)