---How many teachers are there in your school? ---I’m not sure about it. Maybe  .
#51684
A
hundred
B
hundreds
C
hundreds of
D
one hundred
推荐题目
There are _____ boys on the playground. 
#51480
A
for
B
forteen
C
fourty
D
forty
--Is that Mr. Green? ---No, Mr. Green is an ___________ man. But this man is only about _________.
#51812
A
80-year-old; 18 years old
B
80-years-old;18 years old
C
80-year-old;18-year-old
D
80 years old;18-year-old
        people came to the Great Wall during May Day Holiday.  
#51416
A
Million
B
Millions of
C
Million of
D
Ten millions