They sold boxes of such sweets last week.
A. four dozens of
B. four dozen
C. four dozen of
D. four dozens
网友回答
A. four dozens of
(答案→)B. four dozen
C. four dozen of
D. four dozens
解析：考查数词的用法：dozen“二十”，前有数字时不加s,也不加of，用dozens of的时候dozen必须加s.表示“很多”，句意：上个星期，他们买了80盒这样的糖果。选B。