问题
选择题
Between the two parts of the concert is an interval, _____ the audience can buy ice-cream. [ ]
A. when
B. where
C. that
D. which
答案
答案：A
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Between the two parts of the concert is an interval, _____ the audience can buy ice-cream. [ ]
A. when
B. where
C. that
D. which
答案：A