问题
单项选择题
Professor Johnson’s retirement () from next January.
A. carries into effect
B. takes effect
C. has effect
D. puts into effect
答案
参考答案：B
解析：
carry into effect表示“实行，实现”；take effect指“开始实行，开始生效”，为不及物词组。如：The contract takes effect as of October 1．本合同从十月一日起生效。所以，答案为B。