问题
选择题
This old custom has________ since the 18th century, and remains practically unchanged.
A. handed down
B. been handed down
C. handed out
D. been handed out
答案
答案：B
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This old custom has________ since the 18th century, and remains practically unchanged.
A. handed down
B. been handed down
C. handed out
D. been handed out
答案：B
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