—How many birds can you see in the trees?—I can see        birds in them.
#51523
A
hundreds of
B
five hundreds
C
hundred of
D
five hundreds of
推荐题目
–How often do you wash your hair? 
#51813
A
One day
B
Twice
C
Twice a week
D
Two times a day
          of the coats           made of cotton. They feel comfortable.
#51498
A
Two-thirds; is
B
Two-thirds; are
C
Two-third; is
D
Two –third; are
September is        month of the year.
#51064
A
nine
B
nineth
C
the ninth
D
the nineth
____________ people went to the concert which was held in People’s Square the night of May Day. 
#51874
A
Three thousand, in
B
Thousands, on
C
Many thousand, in
D
Thousands of, on