-Would you like to go for a picnic with us ? .-- . But I am too busy . A. No I c

问题补充：

---- Would you like to go for a picnic with us ? .

----- . But I am too busy .

A. No , I can t.

B. I d like.

CYes , I d love to .

D. Why not

答案：

A. No , I can t.

B. I d like.

(答案→)C. Yes , I d love to .

D. Why not

解析：No , I can t.不，我不能；I d like.我愿意；Yes , I d love to是的，我愿意；Why not为什么不；句意：你愿意和我们一起去野餐吗？根据下文，但是我现在太忙。可知前文为肯定回应。故选C。