Helen borrowed my book , saying that she would return it soon.
A. day in and day out
B. day by day
C. some other day
D. the other day
网友回答
A. day in and day out
B. day by day
C. some other day
(答案→)D. the other day
解析：考查day的短语。A一天又一天；B一天天，逐渐；C改天；D前几天；根据后面的would return可知是过去将来时，前面应该使用过去时，选项里D与过去时连用。句意：前几天Helen借了我的书，说她很快就会还给我。