Two __took part in the activity during the summer hoilday答案是hundred old people ,我自己选了hundreds old people...

问题描述:

Two __took part in the activity during the summer hoilday
答案是hundred old people ,我自己选了hundreds old people...

在英语中具体的数目,如二百,三百是two hundred,three hundred,不加s,
加s后,前面不可以加具体的数词,hundreds of people ,hundreds of 好几百, 许许多多的意思,表示一个大概的约数,不是具体的数目

hundreds of,数字后面的hundred不要复数的

hunderd old people 是对的
前面有数词,hundred用原型,而且后面不用of
eg.three hunderd people
前面没有数词,则用hundreds of,意为“成百上千的”
eg.hundreds of people