根据所给要求,改写下列句子.

1.The radio cost me fifty yuan. (改为否定句)
The radio __didn't__ __cost___ me fifty yuan.
cost过去式和原型相同,原句从句意上看应该是cost的过去式,所以否定用didn't
2.It will take the workers five years to build the bridge. (保持原句意思)
The workers will __spend___ five years ___building__ the house.
花费时间 spend+时间+doing
3.The English people hardly ever shake hands. （改为反意疑问句）
The English people hardly ever shake hands, __do__ ___they___?
居中有hardly,表示几乎不,是否定的成分,所以反意疑问句用肯定形式回答.English people是一群人不是个体,用复数.shake hands一般现在时do