—Would you like to come up to my apartment for dinner tonight? — but I’m too busy.A. No

问题补充：

—Would you like to come up to my apartment for dinner tonight?

—, but I’m too busy.

A. No problem

B. I’d love to

C. All right

D. Thank you all the same

答案：

A. No problem

(答案→)B. I’d love to

C. All right

D. Thank you all the same

解析：上文意思是，今晚你愿意来我的公寓吃饭吗？下文意思是我愿意去，但是我太忙了。可知中间选项要表达愿意去的意思。No problem意思是没问题，I’d love to我愿意去， All right如何，Thank you all the same意思是同样谢谢你。故选B，最符合题意。