问题
选择题
— Amy, I called you yesterday evening, but nobody answered the phone.
— Oh, I _________ a walk with my mother at that time.
A．take
B．took
C．am taking
D．was taking
答案
答案：D
根据上文及时间状语在那个时候,可知下文是过去进行时态,故选D.
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