It took us ----to finish this work.
问题描述:
It took us ----to finish this work.
A .three hour and a halfB.three and a half hourC. three andhalf hours
D.three and a half hours 详细讲解一下
答
.three and a half hours
“数词+and a half +名词复数”或者“数词+名词+and a half ”表示……半