There are about six ________ students in our school.

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

_______ of people work in the company. But only two _______ of them are from other countries.

A．Thousands, hundreds                                 B．Thousands, hundred

C．Thousand, hundreds                                          D．Thousand, hundred

 There are more than two _______ students in our school.

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