We won’t give up we should fail ten times.A. even ifB. unless　　　C. whetherD. Until

问题补充：

We won’t give up we should fail ten times.

A. even if

B. unless

C. whether

D. Until

答案：

(答案→)A. even if

B. unless

C. whether

D. Until

解析：句意：我们不会放弃的，即使我们竟然失败了十次。even if即使；unless除非；whether是否；Until直到。故选A。