After six hours of heavy rain ,the river( ) .A.rose two foots and half B.rose two and a half feet为什么选B呢?
问题描述：
After six hours of heavy rain ,the river( ) .A.rose two foots and half B.rose two and a half feet
为什么选B呢?
答
foot 作为英尺的意思时，复数应该是feet. foots 的意思是 沉淀物，油滓。
答
B
1.5 one and a half
2.5 英尺 two and a half feet
或：two feet and a half
half前面的a必须要有的