-- My brother bought me an iPhone 5, but I don’t know . Can you help me? Let’s read the

-- My brother bought me an iPhone 5, but I don’t know . Can you help me?
-- Let’s read the instructions.
A. what to use
B. how to use
C. what to use it
D. how to use it

A. what to useB. how to useC. what to use it(答案→)D. how to use it解析：本句的意思应该是“我不知道如何用它。”AB选项用what明显不对，因为用的就是iPhone5；另外，当用How时后面的动词应该有宾语。所以本题选D。

对的，就是这个意思