问题详情：
— I called you at ten, but there was no reply.
—Oh, that was probably when I a shower.
A．am taking B．took
C．were to take D．was taking
【回答】
D
【解析】
句意：——我十点钟给你打电话，但没有人接。——哦，那可能是我在洗澡的时候。考查时态辨析题。根据上句I called you at ten, but there was no reply.是一般过去时态，可知本句take a shower是在过去打电话时正在发生的动作，需用过去进行时，故选D。
知识点：动词时态
题型：选择题
