--What you when the phone rang?--I was washing my hair in the bathroom.A. were, doingB.

--What you when the phone rang?
--I was washing my hair in the bathroom.
A. were, doing
B. was, doing
C. did, do
D. are, doing

(答案→)A. were, doingB. was, doingC. did, doD. are, doing解析：本题考查过去进行时的使用。本题的含义为电话响时你在做什么？我正在浴室里洗头。本题回答语表示过去正在进行的事，所以本题问句中的主句使用过去进行时，结构为was或were+动词现在分词，本题问句主语为you，故用were doing，故本题选A。

哦，回答的不错