Question

Would you like to go for a walk with us? ___, but I’m busy

1. A.
   No, I can’t
2. B.
   Yes, I will
3. C.
   I’d love to
4. D.
   I like

Answer 1

C
回答语中有个but表示转折我很忙，那么应该是愿意去的，对于别人的邀请，如果很愿意去可用I’d love to，故选C。