单选题 Speaker A: Could we have the honor of your presence at the party? Speaker B: ______

A、 I fully appreciate your invitation.
B、 Sorry, I can't take it.
C、 I think it won't be necessary.
D、 I'd love to, but I have a prior appointment.

【正确答案】 D

【答案解析】解析：本题考查邀请的对话场景。Could you…，please?请你做……好吗?这是一个表达请求的句型，通常肯定回答是：Yes，please／I’d love to；否定回答是：I’d love to／I’m sorry，but…先礼貌地表示愿意，然后用but…说明有什么不得以的原因而做不到。故本题答案选D。