Look ! _________ students are doing morning exercises on the playground .
#51428
A
hundreds of
B
hundred of
C
hundred
D
hundreds
推荐题目
There are three______ workers in this factory. My brother is in it ,too.
#51276
A
thousand
B
thousands of
C
thousand of
D
thousands
There are four ______ students in my school. 
#51817
A
hundred
B
hundreds
C
hundreds of
D
hundred of