题干
After his father’s retirement, he ______ the whole business.
A：took u
B：took over
C：took place
D：took dow
答案(点此获取答案解析）
B
A：took u
B：took over
C：took place
D：took dow
与 
（其中 
）在 
上的单调性正好相反，回答下列问题：