问题补充：
．—Without your help, we this task on time.
—My pleasure.
A. don’t finish
B. will not finish
C. didn’t finish
D. would not have finished
答案：
A. don’t finish
B. will not finish
C. didn’t finish
(答案→)D. would not have finished
解析：without, but for;要没有…，相当于if从句。本句可改为if you hadn’t helped us, we this task on time。这是与过去事实相反的句子。选D
