(单选题)

—Why are you still here?
—I ______ for my classmate, but he hasn’t turned up.

A.have been waiting

B.will be waiting

C.had waited

D.had been waiting

参考答案：A

参考解析：

考查现在完成进行时。句意：“你为什么还在这儿？”“我一直在等我的同学，但他还没有出现。”根据上下句语境可知，wait的动作从过去一直持续到说话时，并有可能继续下去，符合现在完成进行时的定义。故选A。

知识点：

—Why are you still here?—I ______ for my classmate, but he hasn’t turned up.