题目内容：

In the world of business,___is not always easy for women to do the same things as men.
A.this B.that C.she D.it
为什么选D

优质解答

D 因为后面的句子太长所以用it作主语,不定式才是真正的主语.
原句应该是：to do the same thing as men is not always easy for women