Question

Is _______ necessary_______ the workers wear uniforms at work?
A. it, for          B. this, to       C. it, that

Answer 1

C

试题分析：句意：对于工人们来说上班穿制服是有必要的吗？It is +形容词+for sb to do 对于某人来说做某事是怎么样的，故选C。