问题
选择题
Which of the following we can't use when we make a telephone call?
A．Who's that?
B．Who's calling'?
C．Who's speaking?
D．Who are you?
答案
答案：D
题目分析：句意：当我们打电话的时候，下列哪一个是我们不能用的？分析：打电话用语中询问对方是谁时不能用的为who are you? 而要用that来代替你， 故选D