问题描述：
--How about going out for a walk with us?
--I wish I --,but I have to finish my homework.
A.will B.would C.can D.could
Why the answer is "D",not"C"?
--I wish I --,but I have to finish my homework.
A.will B.would C.can D.could
Why the answer is "D",not"C"?
问题解答：
我来补答展开全文阅读