Question

Can you tell me ______ when I called you?

A．what were you doing	B．what are you doing
C．what you are doing	D．what you were doing

Answer 1

D

试题分析：句意：你能告诉我我打电话给你时，你正在干什么吗？宾语从句应用陈述语气。根据题意，可以得知应用过去进行时，故选D。