_____ 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
How _ is your grandmother? She is _ .
#51420
A
old ; sixty
B
much ; sixty
C
old ; sixtieth
D
much ; sixtieth
Shanghai is ______ years old.
#51757
A
seven hundred
B
seven hundreds
C
seven hundreds of
D
seven hundred of
—How many teachers are there in your school?—About two _________.
#51452
A
hundred of
B
hundreds of
C
hundreds
D
hundred
It is said that the gravity on Mars is only about __________ of the gravity on earth．
#50894
A
three-eighths
B
third-eighth
C
three-eighth
D
third-eighth