—Mike do you know who wanted me on the phone?—Sorry. I don’t know. I a bath in the bathr

问题补充：

—Mike, do you know who wanted me on the phone?

—Sorry. I don’t know. I a bath in the bathroom.

A. have had

B. was having

C. had

D. am having

答案：

A. have had

(答案→)B. was having

C. had

D. am having

解析：从wanted是过去式，可知打电话发生在过去，“我”现在不知道，因为当有人打电话来时，“我”正在冲凉。表示在过去某一时刻正在发生的动作，当然用过去进行时。