单选题
-- How many people will come to Beijing for the Olympic Games in 2008?-- It's hard to say. ______ people, I think.
【正确答案】
B
【答案解析】考查数词用法。hundred/thousand/million等词修饰名词时，只用两种形式：“数词+hundred/ thousand/million+名词”和“hundreds/thousands/millions of+名词”，因此[A] 、[C] 两种形式都是不正确的。