There are ______________ birds there in the sky.    
#51475
A
Million of
B
five millions of
C
millions of
D
five millions
推荐题目
Our teacher asked us to write a _________ letter in English this morning. 
#51905
A
ninety-word
B
ninety-words
C
ninety word
D
ninety words
There are two _______students in my school.
#51822
A
hundreds
B
hundred
C
hundreds of
D
hundred of
_________trees have been planted near, so the air is very fresh.
#51259
A
Hundreds of
B
Hundred of
C
Two hundreds
D
Hundreds