问题
选择题
By 16:30, ______ was almost closing time, nearly all the paintings had been sold.[ ]
A. which
B. when
C. what
D. that
答案
答案：A
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By 16:30, ______ was almost closing time, nearly all the paintings had been sold.[ ]
A. which
B. when
C. what
D. that
答案：A