问题补充:
Before you resign you should consider the effect will have on your family.
A. it
B. one
C. who
D. what
答案:
(答案→)A. it
B. one
C. who
D. what
解析:句意:在你辞职之前你应该考虑给你的家庭带来的影响。what不能引导定语从句;这里是have effect on对……的影响;先行词是effect,故排除C;关系词that或which在从句中作have的宾语,在这里省略了,it指的是辞职这件事,根据句意故选A。