No.6. Middle School is very beautiful. There are seven      teachers and  students in it.
#51771
A
thousand of
B
thousands of
C
thousand
D
thousands
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"We will learn        English words this year," the teacher said to the students.
#51555
A
one thousand, three hundred and twenty-one
B
a thousand, and three hundred twenty-one
C
one thousand, three hundred twenty-one
D
a thousand, three hundred and twenty-one
My friend Vivian is an       girl.
#51827
A
seventeen- year- old
B
seventeen years old
C
eighteen –year –old
D
eighteen years old
Tibet has been a part of China since _________ years ago.
#51678
A
hundred
B
seven hundreds
C
hundreds of
D
seven hundred of