问题
True friendship is like sound health,________ the value is seldom known until it is lost.
A:Attracted
B:which
C:of which
D:whose
B:which
C:of which
D:whose
正确答案是：
同类题型
The temperature today is 10℃ below zero— Oh, it’s ____cold [ ]
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___everyone can hear the speaker, there is no _________ in turning up the radio.
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