【推荐1】There are ________ students in this school.

A．thousands of

B．two thousands

C．two thousands of

【推荐2】--- Do you know how many soldiers came to Haiti as United Nations Peacekeeping Forces during the earthquake?
---It’s hard to say. At least ___________, I think.

A．some millions	B．millions of
C．some millions of	D．million of

【推荐3】There are_______ workers in this factory. My brother is in it, too.

A．three thousand of	B．thousands of
C．thousand of	D．three thousands