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There're            students in Grade7.
#51655
A
three hundreds
B
three hundreds of
C
three hundreds'
D
hundreds of
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-- Which floor does John live on? -- He lives on the __________floor of the building.
#51703
A
five
B
fifth
C
fifteen
D
fifty
     people come to visit the Great Wall every year.
#51612
A
Million of
B
Millions of
C
Million
D
Millions
Father’s Day is on _________ Sunday of June.
#51683
A
three
B
the three
C
third
D
the third
It may take _________ years to make such robots .        
#51467
A
hundred of
B
two hundreds
C
hundreds of
D
hundred
There are about          teachers in our school.
#51583
A
two hundreds of
B
two hundreds
C
two hundred
D
two hundred of