Shortly after the accident , two ______ police were sent to the spot to keep order .

1. A.
   dozens of
2. B.
   dozens
3. C.
   dozen of
4. D.
   dozen

Shortly after the book ___, the war between Iraq and America ____.

        A.came about;broke away      B.came out; broke out

C.came on;  broke up         D.came up; broke down

Shortly after the accident, two＿＿＿police were sent to the spot to keep order．  

A．dozen of B．dozens  C．dozen D．dozens of

Shortly after the accident, two＿＿＿police were sent to the spot to keep order．

A．dozen of B．dozens  C．dozen D．dozens of

Shortly after the accident, two___________ police were sent to the spot to keep order.

A. dozens of     B. dozens      C. dozen of     D. dozen