—Did you ask your elder brother for help?—I need to. I managed it by myself.A. don't B. wo

问题补充：

—Did you ask your elder brother for help?

—I need to. I managed it by myself.

A. don

B. wouldn

C. didn

D. won

答案：

A. don

B. wouldn

(答案→)C. didn

D. won

解析：句意：--你请你的哥哥帮忙了吗？--没有必要，我自己就行。因为第一句用的是过去式，所以表示过去没有必要请哥哥帮忙。故选C。