There are over ______ books of all kinds in the library.                                 
#51821
A
nine hundred of
B
nine hundreds
C
nine hundred
D
hundred of
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---How do you say 15,858?      ---          .
#51137
A
Fifteen thousands, eight hundred and fifty-eight
B
Fifteen thousand, eight hundreds and fifty eight.
C
Fifteen thousand, eight hundred and fifty-eight
D
Fifteen thousand and eight hundred and fifty-eight.
 — When did you start to collect stamps?— I got my ______ stamp when I was ______ years old. 
#51450
A
one, seven
B
one, seventh
C
first, seventh
D
first, seven
______ of the workers in the computer factory is about two thousand, and ______ of them are women workers.
#51805
A
The number; second third
B
A number; three quarters
C
A number; half second
D
The number; two thirds