don’t think you can work out the maths problem＿＿＿＿her help. A. sinceB. unlessC. withD. wi

问题补充：

don’t think you can work out the maths problem＿＿＿＿her help.

A. since

B. unless

C. with

D. without

答案：

A. since

B. unless

C. with

(答案→)D. without

解析：“在……帮助下”用with,“没有……帮助”用without。