问题
选择题
27. After his wife died, he kept himself _____ from other people and the outside world,
A．set off
B．cut off
C．put off
D．taken off
答案
答案：B
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27. After his wife died, he kept himself _____ from other people and the outside world,
A．set off
B．cut off
C．put off
D．taken off
答案：B