There are ____ stars in the sky and you can see them at night.

1. A.
   thousand of
2. B.
   two thousands
3. C.
   thousands of
4. D.
   two thousands of

There are ____ stars in the sky and you can see them at night.

There are ____ stars in the sky and you can see them at night.

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