Do you think that _______ is more useful than gold?选项:a、Ironsb、An ironc、Irond、The iron
问题描述：
Do you think that _______ is more useful than gold?
选项:
a、Irons
b、An iron
c、Iron
d、The iron
答
c、Iron
答
c
答
正解c.这里是泛指,表示硬币这种物品比金子有用,硬币是不可数的.不可数表示泛指直接用.
答
C