I don't think you can work out the maths problem________ the

问题描述:

I don't think you can work out the maths problem________ the
teacher's help.
A.since
B.unless
C.because
D.without
【精析与答案】 D选B为什么不行

该句意为我不信你能在没有老师帮助下做出这题.跟据汉语意思此处填without,若填unless,则意为我不信你能做出这题除非老师的帮助,意思不附和题意.