Speaker A: Hello,Jane. How lucky to run into you! Can you and Tom come to dinner tomor-row evening?

Speaker B: _________. I don't think we're going out.

A. I suppose I can't

B. I'm afraid not

C. It's my pleasure

D. I think so

D 【解析】说话者A偶遇说话者B—Jane和Tom，并邀请二人明晚一起共进晚餐。说话者B的答语后半部分说他们明天晚上不会外出，意即同意赴约。A项、B项均表示不同意，C项是针对致谢用的答语，表示“不用谢”，只有D项是表示同意的答语。因此。D项正确。