It is reported that the floods have left about _________ people homeless.A. two thousand B. two-thousands C. two thousands D. two thousands of 答案：A解释一下
问题描述：
It is reported that the floods have left about _________ people homeless.
A. two thousand B. two-thousands C. two thousands D. two thousands of
答案：A
解释一下
答
A.two thousand
hundred / thousand / dozen 等数量的名词,当前面有具体的数字,做定语时.不能加S,
thousands of 这是词组,表示泛指:许多,无数；数以千计的……,成千上万的……