Question

Where have you been? I ________ you all the afternoon．

[　　]

A．

waited for

B．

have waited for

C．

have been waiting for

D．

had waited for

Answer 1

答案：C
解析：

用现在完成进行时表示“等”的动作从过去一直持续到现在，all the afternoon是一个提供信息的时间状语。