1.The radio cost me fifty yuan. (改為否定句)
The radio __didn't__ __cost___ me fifty yuan.
cost過(guò)去式和原型相同,原句從句意上看應(yīng)該是cost的過(guò)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.
花費(fèi)時(shí)間 spend+時(shí)間+doing
3.The English people hardly ever shake hands. （改為反意疑問(wèn)句）
The English people hardly ever shake hands, __do__ ___they___?
居中有hardly,表示幾乎不,是否定的成分,所以反意疑問(wèn)句用肯定形式回答.English people是一群人不是個(gè)體,用復(fù)數(shù).shake hands一般現(xiàn)在時(shí)do