单选题 After searching for half an hour, she realized that her glasses ______on the table all the time.
A. had been lain
B. have been lying
C. were lain
D. had been lying

【正确答案】 D
【答案解析】用完成进行时表示状态，符合时间状语all the time的要求。由于前面用realized，所以用过去完成时。