问题
选择题
Do you know_____ ? Sorry,I’ve no idea.
A．who is she waiting for
B．how is she coming
C．Why was she late for
D．what she is doing that for
答案
答案：D
题目分析：句意：---你知道她为什么要这样做吗？对不起，我不知道。本题考查宾语从句的用法，注意由谓语动词引导的宾语从句用陈述语态，并且时态和主句保持一致。根据句意故选D.