There're            students in Grade7. 
#51655
A
three hundreds
B
three hundreds of
C
three hundreds'
D
hundreds of
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My friend Vivian is an       girl.
#51827
A
seventeen- year- old
B
seventeen years old
C
eighteen –year –old
D
eighteen years old
--What’s three and two? --It’s________.
#51681
A
One
B
two
C
three
D
five
My bedroom is about __________ of the size of yours.
#51725
A
two-three
B
two-threes
C
second-three
D
two-thirds