Question

—I wonder_______at 10:00 on October l^st.

—I was watching the military parade on TV.

A.where were you going B.why did you go

C.what you were doing D.when you are doing it

Answer

C

【解析】

句意：——我想知道你在十月一日10点钟在做什么。——我正在电视上看大阅兵。

考查宾语从句的时态和语序。where were you going是过去进行时的疑问语序；why did you go是一般过去时的疑问语序；what you were doing是过去进行时的陈述语序 when you are doing it你在什么时候做它的。根据主句动词wonder可知宾语从句用陈述语序，排除A和B选项；问句的空格后面有时间，所以宾语从句的引导词不用when。故选C。