问题
选择题
—Could you tell me _____________ last night?
—Er, I was watching TV at home.
A．what you were doing
B．what were you doing
C．what you are doing
D．what are you doing
答案
答案：A
本题tell后跟的是一个宾语从句，要用正常的陈述顺序，故本题不选BD，本题的回答语使用的是过去时，同时问句有过去的时间，故问句中的从句用过去时的一种，故本题选A。