After walk.they all felt tired. A.three hours B.three-hours C.three hour’s D.thr
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After_________walk,they all felt tired.
A.three hours B.three-hours
C.three hour’s D.three hours’
试题答案
D?
解析:
表时间的名词所有格用’s式,且以s结尾的复数名词所有格只加’,s省去。?