We didn’t know you were in trouble at that time, we would have given you a hand.
A. therefore
B. unless
C. otherwise
D. so
网友回答
A. therefore
B. unless
(答案→)C. otherwise
D. so
解析:句意,我们不知道你在那个时候有困难,不然我们就会帮助你。therefore 因此 unless 除非 otherwise 否则 so 因此,根据题目意思,故选 C,