Question

Let’s learn to use the problem we are facing________a stepping-stone to future success.

A. to                                   B. for                    C. as                            D. by

Answer 1

C

解析:

本题句意为：让我们学习使用我们正面临的问题作为未来成功的奠基石。as “作为”，短语use...as...把……当作。