_____ of the water _____ polluted. We must try to protect our environment.
#51088
A
Two third; are
B
Two third; is
C
Two thirds; are
D
Two thirds; is
推荐题目
______ comes after (在……后) seven. 
#51841
A
Six
B
Eight
C
Seven
D
Five
__________ trees are yellow in autumn.               
#51910
A
The number
B
A number
C
A number of
D
The number of
 –Which is the smallest number of the four?--________.
#50889
A
Two thirds
B
A half
C
A quarter
D
Three quarters
    of the students in our class        money for the disabled people these days.
#51566
A
Half; has raised
B
Two thirds; has raised
C
Three fourth ; have raised
D
Three fifths; have raised
—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