问题描述：
He was so ill that he had to ask for____
A.three-days sick leave
B.a three day sick leave
C.a sick leave of three days
D.a three-day sick leave
能不能把为什么选说一下呢？
我给的积分不低哦
A.three-days sick leave
B.a three day sick leave
C.a sick leave of three days
D.a three-day sick leave
能不能把为什么选说一下呢？
我给的积分不低哦
问题解答：
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