— Could you give an introduction to the new machine?— Of course. I will tell you how to u

问题补充：

— Could you give an introduction to the new machine?

— Of course. I will tell you how to use it.

A. him

B. us

C. her

D. it

答案：

A. him

(答案→)B. us

C. her

D. it

解析：句意：--你能给我们介绍一下新的机器吗？-当然，我会告诉你怎么使用它。因为后面用了you，所以前面要么是me，要么是us，所以选B.