A: We are going to fly kites in the park this afternoon. Would you like to join us, Tony?

A: We are going to fly kites in the park this afternoon. Would you like to join us, Tony?

B: _____, but I am going to visit my grandparents.

A.I think so B.I’d like to C.No, thanks D.My pleasure

【答案】

B

【解析】

句意：——我们今天下午要去公园放风筝。托尼，你要和我们一起去吗？——我很想去，但我要去看望我的祖父母。

考查交际用语。A. I think so（我也怎么想）；B. I’d like to（我很想……）；C. No, thanks（不，谢谢）；D. My pleasure（我很乐意）；根据下文but I am going to visit my grandparents.判断空格是委婉拒绝别人的邀请，故选B。