--How many birds can you see in the tree? --I can see    birds in the tree.      
#51676
A
hundred of
B
hundreds of
C
five hundreds
D
five hundreds of
推荐题目
We don’t have enough nurses to look after the patients. At least _____ are needed.
#51519
A
ten another nurses
B
more ten nurses
C
other ten nurses
D
another ten nurses
-- What can I do for you, Madam? --I’d like ________.
#51691
A
two kilos of meat
B
two kilo of meat
C
two kilo of meats
D
two kilos of meats
There are four ______ students in my school. 
#51817
A
hundred
B
hundreds
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