1．Every year, _____ people go to visit their factory.
A．a thousand of B．thousands

C．thousand of D．thousands of

2．Tom has just finished writing a _________ article.
A．nine-hundred-words B．nine-hundreds-word

C．nine-hundred-word D．nine-hundreds-words

3．_______ people lost their homes in Japan’s earthquake.
A．Two thousands B．Thousand

C．Thousands of D．Thousand of

4．Last year, I visited a chemical factory in Baise, there are about _____ workers in it.
A．six thousands B．six thousand

C．six thousands of D．six thousand of

5．About_______of the students in our class were born in the____.

A．two-thirds, 1990s

B．two-thirds, 1990

C．two-third, 1990s