This machine was used -------years ago.
#51793
A
five hundred
B
five hundreds
C
five hundreds of
D
five hundred of
推荐题目
          people visit the museum  every day.
#51185
A
Million of
B
3 million
C
3 millions
D
3 millions of
There are ____ stars in the sky and you can see them at night.
#51590
A
thousand of
B
two thousands
C
thousands of
D
two thousands of