The school shop, customers are mainly students, is closed for the holidays.
A. which
B. whose
C. when
D. where
网友回答
A. which
(答案→)B. whose
C. when
D. where
解析：本题考查定语从句。此处whose引导的非限制性定语从句修饰先行词shop，在定语从句中作customers的定语。句意为“这个学校商店，——其主顾大多是学生，——因为放假就关门了。”